Subtract 18/32 from 7/84
7/84 - 18/32 is -23/48.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 32 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 84 × 8 = 672,
7/84 = 7 × 8/84 × 8 = 56/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
18/32 = 18 × 21/32 × 21 = 378/672 - Subtract the two like fractions:
56/672 - 378/672 = 56 - 378/672 = -322/672 - After reducing the fraction, the answer is -23/48
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