Subtract 42/64 from 10/30, Solve 10/30

Subtract 42/64 from 10/30

10/30 - 42/64 is -31/96.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 64 is 960

Next, find the equivalent fraction of both fractional numbers with denominator 960
For the 1st fraction, since 30 × 32 = 960,
10/30 = 10 × 32/30 × 32 = 320/960
Likewise, for the 2nd fraction, since 64 × 15 = 960,
42/64 = 42 × 15/64 × 15 = 630/960
Subtract the two like fractions:
320/960 - 630/960 = 320 - 630/960 = -310/960
After reducing the fraction, the answer is -31/96

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