Subtract 9/28 from 15/84
15/84 - 9/28 is -1/7.
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,
15/84 = 15 × 1/84 × 1 = 15/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
9/28 = 9 × 3/28 × 3 = 27/84 - Subtract the two like fractions:
15/84 - 27/84 = 15 - 27/84 = -12/84 - After reducing the fraction, the answer is -1/7
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