Subtract 7/14 from 1/20
1/20 - 7/14 is -9/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 14 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
1/20 = 1 × 7/20 × 7 = 7/140 - Likewise, for the 2nd fraction, since 14 × 10 = 140,
7/14 = 7 × 10/14 × 10 = 70/140 - Subtract the two like fractions:
7/140 - 70/140 = 7 - 70/140 = -63/140 - After reducing the fraction, the answer is -9/20
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