Subtract 90/72 from 2/3
1st number: 2/3, 2nd number: 1 18/72
2/3 - 90/72 is -7/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 3 × 24 = 72,
2/3 = 2 × 24/3 × 24 = 48/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
90/72 = 90 × 1/72 × 1 = 90/72 - Subtract the two like fractions:
48/72 - 90/72 = 48 - 90/72 = -42/72 - After reducing the fraction, the answer is -7/12
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