Subtract 20/72 from 75/7
1st number: 10 5/7, 2nd number: 20/72
75/7 - 20/72 is 1315/126.
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,
75/7 = 75 × 72/7 × 72 = 5400/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
20/72 = 20 × 7/72 × 7 = 140/504 - Subtract the two like fractions:
5400/504 - 140/504 = 5400 - 140/504 = 5260/504 - After reducing the fraction, the answer is 1315/126
- In mixed form: 1055/126
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