Subtract 72/63 from 1/4, Solve 1/4 - 1 9/63 as a fraction

Subtract 72/63 from 1/4

1^st number: 1/4, 2^nd number: 1 9/63

1/4 - 72/63 is -25/28.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 63 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 4 × 63 = 252,
1/4 = 1 × 63/4 × 63 = 63/252
Likewise, for the 2nd fraction, since 63 × 4 = 252,
72/63 = 72 × 4/63 × 4 = 288/252
Subtract the two like fractions:
63/252 - 288/252 = 63 - 288/252 = -225/252
After reducing the fraction, the answer is -25/28

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