Subtract 18/40 from 20/48
20/48 - 18/40 is -1/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 40 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
20/48 = 20 × 5/48 × 5 = 100/240 - Likewise, for the 2nd fraction, since 40 × 6 = 240,
18/40 = 18 × 6/40 × 6 = 108/240 - Subtract the two like fractions:
100/240 - 108/240 = 100 - 108/240 = -8/240 - After reducing the fraction, the answer is -1/30
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