Subtract 81/35 from 21/6
1st number: 3 3/6, 2nd number: 2 11/35
21/6 - 81/35 is 83/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 35 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 6 × 35 = 210,
21/6 = 21 × 35/6 × 35 = 735/210 - Likewise, for the 2nd fraction, since 35 × 6 = 210,
81/35 = 81 × 6/35 × 6 = 486/210 - Subtract the two like fractions:
735/210 - 486/210 = 735 - 486/210 = 249/210 - After reducing the fraction, the answer is 83/70
- In mixed form: 113/70
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