Subtract 3/14 from 4/72, Solve 4/72

Subtract 3/14 from 4/72

4/72 - 3/14 is -10/63.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 14 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 72 × 7 = 504,
4/72 = 4 × 7/72 × 7 = 28/504
Likewise, for the 2nd fraction, since 14 × 36 = 504,
3/14 = 3 × 36/14 × 36 = 108/504
Subtract the two like fractions:
28/504 - 108/504 = 28 - 108/504 = -80/504
After reducing the fraction, the answer is -10/63

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