Subtract 20/12 from 90/48
1st number: 1 42/48, 2nd number: 1 8/12
90/48 - 20/12 is 5/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 12 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 48 × 1 = 48,
90/48 = 90 × 1/48 × 1 = 90/48 - Likewise, for the 2nd fraction, since 12 × 4 = 48,
20/12 = 20 × 4/12 × 4 = 80/48 - Subtract the two like fractions:
90/48 - 80/48 = 90 - 80/48 = 10/48 - After reducing the fraction, the answer is 5/24
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