Subtract 42/15 from 30/14
1st number: 2 2/14, 2nd number: 2 12/15
30/14 - 42/15 is -23/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
30/14 = 30 × 15/14 × 15 = 450/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
42/15 = 42 × 14/15 × 14 = 588/210 - Subtract the two like fractions:
450/210 - 588/210 = 450 - 588/210 = -138/210 - After reducing the fraction, the answer is -23/35
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