Subtract 10/28 from 9/72
9/72 - 10/28 is -13/56.
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,
9/72 = 9 × 7/72 × 7 = 63/504 - Likewise, for the 2nd fraction, since 28 × 18 = 504,
10/28 = 10 × 18/28 × 18 = 180/504 - Subtract the two like fractions:
63/504 - 180/504 = 63 - 180/504 = -117/504 - After reducing the fraction, the answer is -13/56
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