Subtract 96/70 from 81/21
1st number: 3 18/21, 2nd number: 1 26/70
81/21 - 96/70 is 87/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
81/21 = 81 × 10/21 × 10 = 810/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
96/70 = 96 × 3/70 × 3 = 288/210 - Subtract the two like fractions:
810/210 - 288/210 = 810 - 288/210 = 522/210 - After reducing the fraction, the answer is 87/35
- In mixed form: 217/35
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