Subtract 42/10 from 40/30
1st number: 1 10/30, 2nd number: 4 2/10
40/30 - 42/10 is -43/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
40/30 = 40 × 1/30 × 1 = 40/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
42/10 = 42 × 3/10 × 3 = 126/30 - Subtract the two like fractions:
40/30 - 126/30 = 40 - 126/30 = -86/30 - After reducing the fraction, the answer is -43/15
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