Subtract 3/18 from 42/24
1st number: 1 18/24, 2nd number: 3/18
42/24 - 3/18 is 19/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 24 × 3 = 72,
42/24 = 42 × 3/24 × 3 = 126/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
3/18 = 3 × 4/18 × 4 = 12/72 - Subtract the two like fractions:
126/72 - 12/72 = 126 - 12/72 = 114/72 - After reducing the fraction, the answer is 19/12
- In mixed form: 17/12
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