Subtract 10/21 from 42/60, Solve 42/60

Subtract 10/21 from 42/60

42/60 - 10/21 is 47/210.

Find the least common denominator or LCM of the two denominators:
LCM of 60 and 21 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 60 × 7 = 420,
42/60 = 42 × 7/60 × 7 = 294/420
Likewise, for the 2nd fraction, since 21 × 20 = 420,
10/21 = 10 × 20/21 × 20 = 200/420
Subtract the two like fractions:
294/420 - 200/420 = 294 - 200/420 = 94/420
After reducing the fraction, the answer is 47/210

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