Subtract 18/70 from 81/7
1st number: 11 4/7, 2nd number: 18/70
81/7 - 18/70 is 396/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 70 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 70 × 1 = 70,
18/70 = 18 × 1/70 × 1 = 18/70 - Subtract the two like fractions:
810/70 - 18/70 = 810 - 18/70 = 792/70 - After reducing the fraction, the answer is 396/35
- In mixed form: 1111/35
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