Subtract 18/48 from 18/20
18/20 - 18/48 is 21/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 20 × 12 = 240,
18/20 = 18 × 12/20 × 12 = 216/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
18/48 = 18 × 5/48 × 5 = 90/240 - Subtract the two like fractions:
216/240 - 90/240 = 216 - 90/240 = 126/240 - After reducing the fraction, the answer is 21/40
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