Subtract 9/12 from 90/63
1st number: 1 27/63, 2nd number: 9/12
90/63 - 9/12 is 19/28.
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,
90/63 = 90 × 4/63 × 4 = 360/252 - Likewise, for the 2nd fraction, since 12 × 21 = 252,
9/12 = 9 × 21/12 × 21 = 189/252 - Subtract the two like fractions:
360/252 - 189/252 = 360 - 189/252 = 171/252 - After reducing the fraction, the answer is 19/28
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