Subtract 90/12 from 42/24
1st number: 1 18/24, 2nd number: 7 6/12
42/24 - 90/12 is -23/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 12 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 24 × 1 = 24,
42/24 = 42 × 1/24 × 1 = 42/24 - Likewise, for the 2nd fraction, since 12 × 2 = 24,
90/12 = 90 × 2/12 × 2 = 180/24 - Subtract the two like fractions:
42/24 - 180/24 = 42 - 180/24 = -138/24 - After reducing the fraction, the answer is -23/4
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