Subtract 42/16 from 30/2, Solve 15 0/2

Subtract 42/16 from 30/2

1^st number: 15 0/2, 2^nd number: 2 10/16

30/2 - 42/16 is 99/8.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 16 is 16

Next, find the equivalent fraction of both fractional numbers with denominator 16
For the 1st fraction, since 2 × 8 = 16,
30/2 = 30 × 8/2 × 8 = 240/16
Likewise, for the 2nd fraction, since 16 × 1 = 16,
42/16 = 42 × 1/16 × 1 = 42/16
Subtract the two like fractions:
240/16 - 42/16 = 240 - 42/16 = 198/16
After reducing the fraction, the answer is 99/8
In mixed form: 123/8

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