Subtract 20/9 from 81/48
1st number: 1 33/48, 2nd number: 2 2/9
81/48 - 20/9 is -77/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 9 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 48 × 3 = 144,
81/48 = 81 × 3/48 × 3 = 243/144 - Likewise, for the 2nd fraction, since 9 × 16 = 144,
20/9 = 20 × 16/9 × 16 = 320/144 - Subtract the two like fractions:
243/144 - 320/144 = 243 - 320/144 = -77/144
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