Subtract 4/10 from 81/7
1st number: 11 4/7, 2nd number: 4/10
81/7 - 4/10 is 391/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 7 × 10 = 70,
81/7 = 81 × 10/7 × 10 = 810/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
4/10 = 4 × 7/10 × 7 = 28/70 - Subtract the two like fractions:
810/70 - 28/70 = 810 - 28/70 = 782/70 - After reducing the fraction, the answer is 391/35
- In mixed form: 116/35
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