Subtract 30/32 from 21/8, Solve 2 5/8

Subtract 30/32 from 21/8

1^st number: 2 5/8, 2^nd number: 30/32

21/8 - 30/32 is 27/16.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 32 is 32

Next, find the equivalent fraction of both fractional numbers with denominator 32
For the 1st fraction, since 8 × 4 = 32,
21/8 = 21 × 4/8 × 4 = 84/32
Likewise, for the 2nd fraction, since 32 × 1 = 32,
30/32 = 30 × 1/32 × 1 = 30/32
Subtract the two like fractions:
84/32 - 30/32 = 84 - 30/32 = 54/32
After reducing the fraction, the answer is 27/16
In mixed form: 111/16

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