Subtract 14/21 from 7/84
7/84 - 14/21 is -7/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
7/84 = 7 × 1/84 × 1 = 7/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
14/21 = 14 × 4/21 × 4 = 56/84 - Subtract the two like fractions:
7/84 - 56/84 = 7 - 56/84 = -49/84 - After reducing the fraction, the answer is -7/12
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