Subtract 90/28 from 15/36
1st number: 15/36, 2nd number: 3 6/28
15/36 - 90/28 is -235/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
15/36 = 15 × 7/36 × 7 = 105/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
90/28 = 90 × 9/28 × 9 = 810/252 - Subtract the two like fractions:
105/252 - 810/252 = 105 - 810/252 = -705/252 - After reducing the fraction, the answer is -235/84
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