Subtract 90/56 from 7/15
1st number: 7/15, 2nd number: 1 34/56
7/15 - 90/56 is -479/420.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 15 × 56 = 840,
7/15 = 7 × 56/15 × 56 = 392/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
90/56 = 90 × 15/56 × 15 = 1350/840 - Subtract the two like fractions:
392/840 - 1350/840 = 392 - 1350/840 = -958/840 - After reducing the fraction, the answer is -479/420
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