Subtract 90/42 from 63/36
1st number: 1 27/36, 2nd number: 2 6/42
63/36 - 90/42 is -11/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 42 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
63/36 = 63 × 7/36 × 7 = 441/252 - Likewise, for the 2nd fraction, since 42 × 6 = 252,
90/42 = 90 × 6/42 × 6 = 540/252 - Subtract the two like fractions:
441/252 - 540/252 = 441 - 540/252 = -99/252 - After reducing the fraction, the answer is -11/28
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