Subtract 8/15 from 42/12
1st number: 3 6/12, 2nd number: 8/15
42/12 - 8/15 is 89/30.
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,
42/12 = 42 × 5/12 × 5 = 210/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
8/15 = 8 × 4/15 × 4 = 32/60 - Subtract the two like fractions:
210/60 - 32/60 = 210 - 32/60 = 178/60 - After reducing the fraction, the answer is 89/30
- In mixed form: 229/30
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