Subtract 25/12 from 72/63
1st number: 1 9/63, 2nd number: 2 1/12
72/63 - 25/12 is -79/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 12 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
72/63 = 72 × 4/63 × 4 = 288/252 - Likewise, for the 2nd fraction, since 12 × 21 = 252,
25/12 = 25 × 21/12 × 21 = 525/252 - Subtract the two like fractions:
288/252 - 525/252 = 288 - 525/252 = -237/252 - After reducing the fraction, the answer is -79/84
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