Subtract 20/18 from 15/48
1st number: 15/48, 2nd number: 1 2/18
15/48 - 20/18 is -115/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 18 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 48 × 3 = 144,
15/48 = 15 × 3/48 × 3 = 45/144 - Likewise, for the 2nd fraction, since 18 × 8 = 144,
20/18 = 20 × 8/18 × 8 = 160/144 - Subtract the two like fractions:
45/144 - 160/144 = 45 - 160/144 = -115/144
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