Subtract 60/70 from 45/56
45/56 - 60/70 is -3/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
45/56 = 45 × 5/56 × 5 = 225/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
60/70 = 60 × 4/70 × 4 = 240/280 - Subtract the two like fractions:
225/280 - 240/280 = 225 - 240/280 = -15/280 - After reducing the fraction, the answer is -3/56
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Related: 90/56-60/70