Subtract 21/75 from 4/18
4/18 - 21/75 is -13/225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 75 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 18 × 25 = 450,
4/18 = 4 × 25/18 × 25 = 100/450 - Likewise, for the 2nd fraction, since 75 × 6 = 450,
21/75 = 21 × 6/75 × 6 = 126/450 - Subtract the two like fractions:
100/450 - 126/450 = 100 - 126/450 = -26/450 - After reducing the fraction, the answer is -13/225
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