Subtract 90/28 from 9/15
1st number: 9/15, 2nd number: 3 6/28
9/15 - 90/28 is -183/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
9/15 = 9 × 28/15 × 28 = 252/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
90/28 = 90 × 15/28 × 15 = 1350/420 - Subtract the two like fractions:
252/420 - 1350/420 = 252 - 1350/420 = -1098/420 - After reducing the fraction, the answer is -183/70
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