Subtract 16/35 from 7/20
7/20 - 16/35 is -3/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
7/20 = 7 × 7/20 × 7 = 49/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
16/35 = 16 × 4/35 × 4 = 64/140 - Subtract the two like fractions:
49/140 - 64/140 = 49 - 64/140 = -15/140 - After reducing the fraction, the answer is -3/28
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