Subtract 42/15 from 75/30
1st number: 2 15/30, 2nd number: 2 12/15
75/30 - 42/15 is -3/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
75/30 = 75 × 1/30 × 1 = 75/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
42/15 = 42 × 2/15 × 2 = 84/30 - Subtract the two like fractions:
75/30 - 84/30 = 75 - 84/30 = -9/30 - After reducing the fraction, the answer is -3/10
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