Subtract 21/20 from 14/7
1st number: 2 0/7, 2nd number: 1 1/20
14/7 - 21/20 is 19/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 7 × 20 = 140,
14/7 = 14 × 20/7 × 20 = 280/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
21/20 = 21 × 7/20 × 7 = 147/140 - Subtract the two like fractions:
280/140 - 147/140 = 280 - 147/140 = 133/140 - After reducing the fraction, the answer is 19/20
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