Subtract 7/28 from 1/84
1/84 - 7/28 is -5/21.
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,
1/84 = 1 × 1/84 × 1 = 1/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
7/28 = 7 × 3/28 × 3 = 21/84 - Subtract the two like fractions:
1/84 - 21/84 = 1 - 21/84 = -20/84 - After reducing the fraction, the answer is -5/21
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