Subtract 20/7 from 45/56
1st number: 45/56, 2nd number: 2 6/7
45/56 - 20/7 is -115/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 7 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 56 × 1 = 56,
45/56 = 45 × 1/56 × 1 = 45/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
20/7 = 20 × 8/7 × 8 = 160/56 - Subtract the two like fractions:
45/56 - 160/56 = 45 - 160/56 = -115/56
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