Subtract 40/3 from 45/42
1st number: 1 3/42, 2nd number: 13 1/3
45/42 - 40/3 is -515/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 3 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
45/42 = 45 × 1/42 × 1 = 45/42 - Likewise, for the 2nd fraction, since 3 × 14 = 42,
40/3 = 40 × 14/3 × 14 = 560/42 - Subtract the two like fractions:
45/42 - 560/42 = 45 - 560/42 = -515/42
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