Subtract 18/7 from 20/14
1st number: 1 6/14, 2nd number: 2 4/7
20/14 - 18/7 is -8/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 14 × 1 = 14,
20/14 = 20 × 1/14 × 1 = 20/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
18/7 = 18 × 2/7 × 2 = 36/14 - Subtract the two like fractions:
20/14 - 36/14 = 20 - 36/14 = -16/14 - After reducing the fraction, the answer is -8/7
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