Subtract 18/70 from 42/5
1st number: 8 2/5, 2nd number: 18/70
42/5 - 18/70 is 57/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 5 × 14 = 70,
42/5 = 42 × 14/5 × 14 = 588/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
18/70 = 18 × 1/70 × 1 = 18/70 - Subtract the two like fractions:
588/70 - 18/70 = 588 - 18/70 = 570/70 - After reducing the fraction, the answer is 57/7
- In mixed form: 81/7
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