Subtract 42/32 from 10/30, Solve 10/30

Subtract 42/32 from 10/30

1^st number: 10/30, 2^nd number: 1 10/32

10/30 - 42/32 is -47/48.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 32 is 480

Next, find the equivalent fraction of both fractional numbers with denominator 480
For the 1st fraction, since 30 × 16 = 480,
10/30 = 10 × 16/30 × 16 = 160/480
Likewise, for the 2nd fraction, since 32 × 15 = 480,
42/32 = 42 × 15/32 × 15 = 630/480
Subtract the two like fractions:
160/480 - 630/480 = 160 - 630/480 = -470/480
After reducing the fraction, the answer is -47/48

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