Subtract 14/6 from 18/21
1st number: 18/21, 2nd number: 2 2/6
18/21 - 14/6 is -31/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
18/21 = 18 × 2/21 × 2 = 36/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
14/6 = 14 × 7/6 × 7 = 98/42 - Subtract the two like fractions:
36/42 - 98/42 = 36 - 98/42 = -62/42 - After reducing the fraction, the answer is -31/21
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