Subtract 2/63 from 72/40, Solve 1 32/40

Subtract 2/63 from 72/40

1^st number: 1 32/40, 2^nd number: 2/63

72/40 - 2/63 is 557/315.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 63 is 2520

Next, find the equivalent fraction of both fractional numbers with denominator 2520
For the 1st fraction, since 40 × 63 = 2520,
72/40 = 72 × 63/40 × 63 = 4536/2520
Likewise, for the 2nd fraction, since 63 × 40 = 2520,
2/63 = 2 × 40/63 × 40 = 80/2520
Subtract the two like fractions:
4536/2520 - 80/2520 = 4536 - 80/2520 = 4456/2520
After reducing the fraction, the answer is 557/315
In mixed form: 1242/315

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