Subtract 9/75 from 4/90
4/90 - 9/75 is -17/225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 75 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 90 × 5 = 450,
4/90 = 4 × 5/90 × 5 = 20/450 - Likewise, for the 2nd fraction, since 75 × 6 = 450,
9/75 = 9 × 6/75 × 6 = 54/450 - Subtract the two like fractions:
20/450 - 54/450 = 20 - 54/450 = -34/450 - After reducing the fraction, the answer is -17/225
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