Subtract 42/70 from 81/3
1st number: 27 0/3, 2nd number: 42/70
81/3 - 42/70 is 132/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 3 × 70 = 210,
81/3 = 81 × 70/3 × 70 = 5670/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
42/70 = 42 × 3/70 × 3 = 126/210 - Subtract the two like fractions:
5670/210 - 126/210 = 5670 - 126/210 = 5544/210 - After reducing the fraction, the answer is 132/5
- In mixed form: 262/5
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