Subtract 8/42 from 16/72, Solve 16/72

Subtract 8/42 from 16/72

16/72 - 8/42 is 2/63.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 42 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 72 × 7 = 504,
16/72 = 16 × 7/72 × 7 = 112/504
Likewise, for the 2nd fraction, since 42 × 12 = 504,
8/42 = 8 × 12/42 × 12 = 96/504
Subtract the two like fractions:
112/504 - 96/504 = 112 - 96/504 = 16/504
After reducing the fraction, the answer is 2/63

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