Subtract 3/28 from 7/84
7/84 - 3/28 is -1/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 28 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 28 × 3 = 84,
3/28 = 3 × 3/28 × 3 = 9/84 - Subtract the two like fractions:
7/84 - 9/84 = 7 - 9/84 = -2/84 - After reducing the fraction, the answer is -1/42
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