Subtract 8/28 from 8/72
8/72 - 8/28 is -11/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 28 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
8/72 = 8 × 7/72 × 7 = 56/504 - Likewise, for the 2nd fraction, since 28 × 18 = 504,
8/28 = 8 × 18/28 × 18 = 144/504 - Subtract the two like fractions:
56/504 - 144/504 = 56 - 144/504 = -88/504 - After reducing the fraction, the answer is -11/63
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