Subtract 63/48 from 7/40, Solve 7/40

Subtract 63/48 from 7/40

1^st number: 7/40, 2^nd number: 1 15/48

7/40 - 63/48 is -91/80.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 48 is 240

Next, find the equivalent fraction of both fractional numbers with denominator 240
For the 1st fraction, since 40 × 6 = 240,
7/40 = 7 × 6/40 × 6 = 42/240
Likewise, for the 2nd fraction, since 48 × 5 = 240,
63/48 = 63 × 5/48 × 5 = 315/240
Subtract the two like fractions:
42/240 - 315/240 = 42 - 315/240 = -273/240
After reducing the fraction, the answer is -91/80

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