Subtract 84/72 from 28/84
1st number: 28/84, 2nd number: 1 12/72
28/84 - 84/72 is -5/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 84 × 6 = 504,
28/84 = 28 × 6/84 × 6 = 168/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
84/72 = 84 × 7/72 × 7 = 588/504 - Subtract the two like fractions:
168/504 - 588/504 = 168 - 588/504 = -420/504 - After reducing the fraction, the answer is -5/6
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