Subtract 3/4 from 20/40
20/40 - 3/4 is -1/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 4 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
20/40 = 20 × 1/40 × 1 = 20/40 - Likewise, for the 2nd fraction, since 4 × 10 = 40,
3/4 = 3 × 10/4 × 10 = 30/40 - Subtract the two like fractions:
20/40 - 30/40 = 20 - 30/40 = -10/40 - After reducing the fraction, the answer is -1/4
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