Subtract 12/20 from 18/48
18/48 - 12/20 is -9/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 20 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
18/48 = 18 × 5/48 × 5 = 90/240 - Likewise, for the 2nd fraction, since 20 × 12 = 240,
12/20 = 12 × 12/20 × 12 = 144/240 - Subtract the two like fractions:
90/240 - 144/240 = 90 - 144/240 = -54/240 - After reducing the fraction, the answer is -9/40
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