Subtract 72/28 from 7/84
1st number: 7/84, 2nd number: 2 16/28
7/84 - 72/28 is -209/84.
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,
7/84 = 7 × 1/84 × 1 = 7/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
72/28 = 72 × 3/28 × 3 = 216/84 - Subtract the two like fractions:
7/84 - 216/84 = 7 - 216/84 = -209/84
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