Subtract 20/8 from 16/7
1st number: 2 2/7, 2nd number: 2 4/8
16/7 - 20/8 is -3/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 7 × 8 = 56,
16/7 = 16 × 8/7 × 8 = 128/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
20/8 = 20 × 7/8 × 7 = 140/56 - Subtract the two like fractions:
128/56 - 140/56 = 128 - 140/56 = -12/56 - After reducing the fraction, the answer is -3/14
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