To subtract fractions, we need to have a common denominator. The common denominator for 8 and 4 is 8*4 = 32.
So, we rewrite the expression as:
7/8 - 1/4 = (7/8)*(4/4) - (1/4)*(8/8)
Multiplying the numerators and denominators, we have:
= 28/32 - 8/32
Now, we can subtract the fractions:
= (28 - 8)/32
= 20/32
The fraction 20/32 can be simplified by dividing the numerator and denominator by their greatest common factor, which is 4:
= 5/8
Therefore, 7/8 - 1/4 = 5/8.
7/8-1/4=
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