Subtract 64/90 from 9/25
9/25 - 64/90 is -79/225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 25 × 18 = 450,
9/25 = 9 × 18/25 × 18 = 162/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
64/90 = 64 × 5/90 × 5 = 320/450 - Subtract the two like fractions:
162/450 - 320/450 = 162 - 320/450 = -158/450 - After reducing the fraction, the answer is -79/225
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