Subtract 90/63 from 7/12
1st number: 7/12, 2nd number: 1 27/63
7/12 - 90/63 is -71/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 12 × 21 = 252,
7/12 = 7 × 21/12 × 21 = 147/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
90/63 = 90 × 4/63 × 4 = 360/252 - Subtract the two like fractions:
147/252 - 360/252 = 147 - 360/252 = -213/252 - After reducing the fraction, the answer is -71/84
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