Subtract 4/20 from 7/75
7/75 - 4/20 is -8/75.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 20 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
7/75 = 7 × 4/75 × 4 = 28/300 - Likewise, for the 2nd fraction, since 20 × 15 = 300,
4/20 = 4 × 15/20 × 15 = 60/300 - Subtract the two like fractions:
28/300 - 60/300 = 28 - 60/300 = -32/300 - After reducing the fraction, the answer is -8/75
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