Subtract 20/32 from 27/2, Solve 13 1/2

Subtract 20/32 from 27/2

1^st number: 13 1/2, 2^nd number: 20/32

27/2 - 20/32 is 103/8.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 32 is 32

Next, find the equivalent fraction of both fractional numbers with denominator 32
For the 1st fraction, since 2 × 16 = 32,
27/2 = 27 × 16/2 × 16 = 432/32
Likewise, for the 2nd fraction, since 32 × 1 = 32,
20/32 = 20 × 1/32 × 1 = 20/32
Subtract the two like fractions:
432/32 - 20/32 = 432 - 20/32 = 412/32
After reducing the fraction, the answer is 103/8
In mixed form: 127/8

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