Subtract 2/63 from 12/40, Solve 12/40

Subtract 2/63 from 12/40

12/40 - 2/63 is 169/630.

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,
12/40 = 12 × 63/40 × 63 = 756/2520
Likewise, for the 2nd fraction, since 63 × 40 = 2520,
2/63 = 2 × 40/63 × 40 = 80/2520
Subtract the two like fractions:
756/2520 - 80/2520 = 756 - 80/2520 = 676/2520
After reducing the fraction, the answer is 169/630

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