Subtract 42/40 from 30/2
1st number: 15 0/2, 2nd number: 1 2/40
30/2 - 42/40 is 279/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 2 × 20 = 40,
30/2 = 30 × 20/2 × 20 = 600/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
42/40 = 42 × 1/40 × 1 = 42/40 - Subtract the two like fractions:
600/40 - 42/40 = 600 - 42/40 = 558/40 - After reducing the fraction, the answer is 279/20
- In mixed form: 1319/20
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