Subtract 42/40 from 45/3
1st number: 15 0/3, 2nd number: 1 2/40
45/3 - 42/40 is 279/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 3 × 40 = 120,
45/3 = 45 × 40/3 × 40 = 1800/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
42/40 = 42 × 3/40 × 3 = 126/120 - Subtract the two like fractions:
1800/120 - 126/120 = 1800 - 126/120 = 1674/120 - After reducing the fraction, the answer is 279/20
- In mixed form: 1319/20
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