Subtract 3/5 from 20/75
20/75 - 3/5 is -1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 5 is 75
Next, find the equivalent fraction of both fractional numbers with denominator 75 - For the 1st fraction, since 75 × 1 = 75,
20/75 = 20 × 1/75 × 1 = 20/75 - Likewise, for the 2nd fraction, since 5 × 15 = 75,
3/5 = 3 × 15/5 × 15 = 45/75 - Subtract the two like fractions:
20/75 - 45/75 = 20 - 45/75 = -25/75 - After reducing the fraction, the answer is -1/3
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