Subtract 90/36 from 35/21
1st number: 1 14/21, 2nd number: 2 18/36
35/21 - 90/36 is -5/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 21 × 12 = 252,
35/21 = 35 × 12/21 × 12 = 420/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
90/36 = 90 × 7/36 × 7 = 630/252 - Subtract the two like fractions:
420/252 - 630/252 = 420 - 630/252 = -210/252 - After reducing the fraction, the answer is -5/6
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