Subtract 42/32 from 30/8, Solve 3 6/8

Subtract 42/32 from 30/8

1^st number: 3 6/8, 2^nd number: 1 10/32

30/8 - 42/32 is 39/16.

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,
30/8 = 30 × 4/8 × 4 = 120/32
Likewise, for the 2nd fraction, since 32 × 1 = 32,
42/32 = 42 × 1/32 × 1 = 42/32
Subtract the two like fractions:
120/32 - 42/32 = 120 - 42/32 = 78/32
After reducing the fraction, the answer is 39/16
In mixed form: 27/16

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