Subtract 42/30 from 40/15
1st number: 2 10/15, 2nd number: 1 12/30
40/15 - 42/30 is 19/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
40/15 = 40 × 2/15 × 2 = 80/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
42/30 = 42 × 1/30 × 1 = 42/30 - Subtract the two like fractions:
80/30 - 42/30 = 80 - 42/30 = 38/30 - After reducing the fraction, the answer is 19/15
- In mixed form: 14/15
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