Subtract 9/84 from 7/8
7/8 - 9/84 is 43/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 84 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
7/8 = 7 × 21/8 × 21 = 147/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
9/84 = 9 × 2/84 × 2 = 18/168 - Subtract the two like fractions:
147/168 - 18/168 = 147 - 18/168 = 129/168 - After reducing the fraction, the answer is 43/56
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