Nini G.

asked • 01/10/18

what is 5/8 minus 1/4

5/8-1/4 , i want to know the answer to this equation

Sophia P.

If you need to add or subtract fractions you need to find common denominators. That is...? I'm having a lot of trouble understanding, too.
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11/17/21

Sophia P.

I don't know how to do this at all!
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11/17/21

1 Expert Answer

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Andrew M. answered • 01/10/18

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Mathematics - Algebra a Specialty / F.I.T. Grad - B.S. w/Honors

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To add or subtract fractions you need a common 
denominator ... The number on the bottom.  We 
need the Least Common Denominator (LCD)... the smallest
number that both denominators divide into equally.
 
our denominators are 4 and 8.
The LCD is 8
 
So we need to change 1/4 into a fraction
with 8 on the bottom.
 
(1/4)(2/2) = 2/8
Note that 2/2 = 1 so the actual value
is the same since we multiplied by 1
 
5/8 - 1/4 = 5/8 - 2/8 = (5-2)/8 = 3/8
 
Questions?
 
 
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