Subtract 12/15 from 7/56
7/56 - 12/15 is -27/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 15 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
7/56 = 7 × 15/56 × 15 = 105/840 - Likewise, for the 2nd fraction, since 15 × 56 = 840,
12/15 = 12 × 56/15 × 56 = 672/840 - Subtract the two like fractions:
105/840 - 672/840 = 105 - 672/840 = -567/840 - After reducing the fraction, the answer is -27/40
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