Q&A for How to Calculate Fractions

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What is 5/8 times 16?

Donagan

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To multiply a fraction by a whole number, multiply the numerator by the whole number to get the new numerator. The denominator remains unchanged. (5/8)(16) = 80/8 = 10.

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Question

How do I calculate 2/3 × -5/6?

Donagan

Top Answerer

(2/3)(-5/6) = [(2)(-5)] / [(3)(6)] = -10/18 = -5/9.

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Question

What is 4/10 subtracted from 24/100?

Community Answer

24/100 - 4/10 = 24/100 - 40/100 = -16/100.

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Question

How do I calculate 1 3/8 + 7 5/8?

I_l1ke_gam3s

Community Answer

Add the whole numbers and the fractions separately. First add 1 + 7 to get 8. Then add 3/8 + 5/8, which equals 8/8 or 1. Then 8 + 1 = 9.

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Question

How do I calculate this: 3 5/12 - 1 3/4?

Community Answer

3 5/12 - 1 3/4 = 41/12 - 7/4 = 41/12 - 21/12 = 20/12 = 1 8/12 = 1 2/3.

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Question

How do I calculate this: 3 5/12 - 1 3/4?

Community Answer

3 5/12 = 1 3/4 = 41/12 - 7/4 = 41/12 - 21/12 = 20/12 = 1 8/12 = 1 2/3.

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3/4 with a denominator of 28

Community Answer

If you want to divide 3/4 by 28, leave the 3 alone and multiply the 4 by 28. The answer is 3 / [(4)(28)] = 3 / 112.

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How do I calculate (1/-100) - (1/-25)?

Community Answer

(1/-100) - (1/-25) = (-1/100) - (-1/25) = (-1/100) + (1/25) = (-1/100) + 4/100) = 3/100. 1/2500.

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Question

What is 8 4/9 + 6 3/4?

I_l1ke_gam3s

Community Answer

8 4/9 + 6 3/4 = 8 16/36 + 6 27/36 = 14 43/36 = 15 7/36.

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Question

What is 2/3 of 45,000?

Community Answer

(2/3)(45,000) = 90,000 / 3 = 30,000.

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Please explain further for me on adding fractions with different denominators.

Community Answer

See Add Fractions With Unlike Denominators .

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Does 8/10 = 0.8 or 0.08?

Community Answer

8/10 and 0.8 are two ways of writing the same thing: eight-tenths.

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Question

How much is 5/8 + 7/8?

Community Answer

5/8 + 7/8 = 12/8 = 1 4/8 = 1 1/2.

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Question

How do l calculate 9 - 5/7?

I_l1ke_gam3s

Community Answer

9 - 5/7 = 63/7 - 5/7 = 58/7 = 8 2/7.

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Question

What is one half of 65/128?

Community Answer

When the numerator is an odd number, just double the denominator (and reduce the resulting fraction if necessary). So half of 65/128 is 65/256.

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What is 1/3 of $1586.36?

Community Answer

$1586.36 ÷ 3 = $528.79.

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How do I calculate 2 1/4 + 5 2/4?

Community Answer

2 1/4 + 5 2/4 = 9/4 + 22/4 = 31/4 = 7 3/4.

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Did Keenan pass the test if he scored 13/25 in mathematics and the passing rate is 40%? What was his percentage?

I_l1ke_gam3s

Community Answer

13/25 equals 52/100 or 52%, so he passed.

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Question

How do I calculate -5 2/3 - 1/6?

Community Answer

First change -5 2/3 to -5 4/6. We haven't changed the value, just the form. Now subtract. -5 4/6 - 1/6 = -5 5/6.

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How do I calculate 2 4/5 times 3 2/3?

Community Answer

(2 4/5)(3 2/3) = (14/5)(11/3) = 154/15 = 10 4/15.

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Question

How do I calculate 1/2 divided by 4/6, then multiplied by 3/7?

I_l1ke_gam3s

Community Answer

Start by dividing 1/2 by 4/6, which is done by multiplying 1/2 by 6/4 = 6/8. Then multiply 6/8 by 3/7 to get 18/56, which reduces to 9/28.

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Question

How do I calculate $ \frac{180}{100} \times 33 \frac{1}{3}\% $?

Community Answer

33 1/3% is equivalent to the fraction 1/3. So (180/100)(33 1/3%) = (180/100)(1/3) = 180/300 = 3/5.

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How do I turn an improper fraction into a proper fraction?

I_l1ke_gam3s

Community Answer

You can’t make an improper fraction a proper fraction because that is already more than a proper fraction. All you can do is turn it into a mixed number or if it’s not simplified, simplify it to its lowest terms.

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Question

How do I calculate this fraction: 8/5 * 8/5 - 9/5?

I_l1ke_gam3s

Community Answer

8/5 x 8/5 = 64/25. Convert 9/5 to 45/25. Then 64/25 - 45/25 = 19/25. Your answer is 19/25.

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Question

How do you convert a mixed number into an improper fraction?

Community Answer

Multiply the denominator by the whole number, then add that result to the numerator of the fraction to get the final numerator. The final denominator is the same as the denominator in the fraction of the mixed number.

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Question

How do I calculate 1/2 is equal to?/8

Community Answer

Let 1/2 = x/8. Solve for x by cross-multiplying: (1)(8) = (x)(2). Divide both sides of the equation by 2, and x = 4. So 1/2 = 4/8.

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Question

How do I calculate 1/5 - 1/4 = 7/15?

Community Answer

You don't. 1/5 - 1/4 = 4/20 - 5/20 = -1/20.

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Question

How do you add 2 1/2 + 7/10+ 1 1/4?

Community Answer

2 1/2 + 7/10 + 1 1/4 = 5/2 + 7/10 + 5/4 = 50/20 + 14/20 + 25/20 = 89/20 = 4 9/20.

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Question

How do you calculate 14/13 - 13/15?

Community Answer

Find the common denominator. Then subtract the second numerator from the first, and keep the common denominator.

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Question

How do you rearrange these fractions from largest to smallest: 6/12, 3/4, 5/8, 1/16?

Community Answer

First find the lowest common denominator. Because 12 is a multiple of 4 and 16 is a multiple of 8, you can find the LCD by multiplying 12 by 16 (and then perhaps reducing). (12)(16) = 192. That is a common denominator but not the lowest common denominator. If you divide by 192 by 2, you get 96, which is the lowest common denominator. So the fractions convert to 48/96, 72/96, 60/96 and 6/96, respectively. Arranged from largest to smallest, they are 72/96, 60/96, 48/96 and 6/96. So the rearranged original fractions are 3/4, 5/8, 6/12 and 1/16.

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