Subtract 9/72 from 8/7
1st number: 1 1/7, 2nd number: 9/72
8/7 - 9/72 is 57/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 7 × 72 = 504,
8/7 = 8 × 72/7 × 72 = 576/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
9/72 = 9 × 7/72 × 7 = 63/504 - Subtract the two like fractions:
576/504 - 63/504 = 576 - 63/504 = 513/504 - After reducing the fraction, the answer is 57/56
- In mixed form: 11/56
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