Subtract 42/3 from 49/40
1st number: 1 9/40, 2nd number: 14 0/3
49/40 - 42/3 is -511/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 3 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
49/40 = 49 × 3/40 × 3 = 147/120 - Likewise, for the 2nd fraction, since 3 × 40 = 120,
42/3 = 42 × 40/3 × 40 = 1680/120 - Subtract the two like fractions:
147/120 - 1680/120 = 147 - 1680/120 = -1533/120 - After reducing the fraction, the answer is -511/40
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