Subtract 72/90 from 2/3
2/3 - 72/90 is -2/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 3 × 30 = 90,
2/3 = 2 × 30/3 × 30 = 60/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
72/90 = 72 × 1/90 × 1 = 72/90 - Subtract the two like fractions:
60/90 - 72/90 = 60 - 72/90 = -12/90 - After reducing the fraction, the answer is -2/15
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