Subtract 42/15 from 70/12
1st number: 5 10/12, 2nd number: 2 12/15
70/12 - 42/15 is 91/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
70/12 = 70 × 5/12 × 5 = 350/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
42/15 = 42 × 4/15 × 4 = 168/60 - Subtract the two like fractions:
350/60 - 168/60 = 350 - 168/60 = 182/60 - After reducing the fraction, the answer is 91/30
- In mixed form: 31/30
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