Subtract 21/4 from 7/63
1st number: 7/63, 2nd number: 5 1/4
7/63 - 21/4 is -185/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 4 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
7/63 = 7 × 4/63 × 4 = 28/252 - Likewise, for the 2nd fraction, since 4 × 63 = 252,
21/4 = 21 × 63/4 × 63 = 1323/252 - Subtract the two like fractions:
28/252 - 1323/252 = 28 - 1323/252 = -1295/252 - After reducing the fraction, the answer is -185/36
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