Subtract 64/90 from 3/30
3/30 - 64/90 is -11/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
3/30 = 3 × 3/30 × 3 = 9/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
64/90 = 64 × 1/90 × 1 = 64/90 - Subtract the two like fractions:
9/90 - 64/90 = 9 - 64/90 = -55/90 - After reducing the fraction, the answer is -11/18
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