Subtract 18/7 from 9/84
1st number: 9/84, 2nd number: 2 4/7
9/84 - 18/7 is -69/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
9/84 = 9 × 1/84 × 1 = 9/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
18/7 = 18 × 12/7 × 12 = 216/84 - Subtract the two like fractions:
9/84 - 216/84 = 9 - 216/84 = -207/84 - After reducing the fraction, the answer is -69/28
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