Subtract 70/15 from 42/30
1st number: 1 12/30, 2nd number: 4 10/15
42/30 - 70/15 is -49/15.
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,
42/30 = 42 × 1/30 × 1 = 42/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
70/15 = 70 × 2/15 × 2 = 140/30 - Subtract the two like fractions:
42/30 - 140/30 = 42 - 140/30 = -98/30 - After reducing the fraction, the answer is -49/15
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