Subtract 21/60 from 18/75
18/75 - 21/60 is -11/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 60 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
18/75 = 18 × 4/75 × 4 = 72/300 - Likewise, for the 2nd fraction, since 60 × 5 = 300,
21/60 = 21 × 5/60 × 5 = 105/300 - Subtract the two like fractions:
72/300 - 105/300 = 72 - 105/300 = -33/300 - After reducing the fraction, the answer is -11/100
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