Subtract 20/63 from 2/40, Solve 2/40

Subtract 20/63 from 2/40

2/40 - 20/63 is -337/1260.

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,
2/40 = 2 × 63/40 × 63 = 126/2520
Likewise, for the 2nd fraction, since 63 × 40 = 2520,
20/63 = 20 × 40/63 × 40 = 800/2520
Subtract the two like fractions:
126/2520 - 800/2520 = 126 - 800/2520 = -674/2520
After reducing the fraction, the answer is -337/1260

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