Subtract 35/40 from 7/63, Solve 7/63

Subtract 35/40 from 7/63

7/63 - 35/40 is -55/72.

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

Next, find the equivalent fraction of both fractional numbers with denominator 2520
For the 1st fraction, since 63 × 40 = 2520,
7/63 = 7 × 40/63 × 40 = 280/2520
Likewise, for the 2nd fraction, since 40 × 63 = 2520,
35/40 = 35 × 63/40 × 63 = 2205/2520
Subtract the two like fractions:
280/2520 - 2205/2520 = 280 - 2205/2520 = -1925/2520
After reducing the fraction, the answer is -55/72

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