Subtract 3/72 from 8/7
1st number: 1 1/7, 2nd number: 3/72
8/7 - 3/72 is 185/168.
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,
3/72 = 3 × 7/72 × 7 = 21/504 - Subtract the two like fractions:
576/504 - 21/504 = 576 - 21/504 = 555/504 - After reducing the fraction, the answer is 185/168
- In mixed form: 117/168
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