Subtract 90/84 from 6/9
1st number: 6/9, 2nd number: 1 6/84
6/9 - 90/84 is -17/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 9 × 28 = 252,
6/9 = 6 × 28/9 × 28 = 168/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
90/84 = 90 × 3/84 × 3 = 270/252 - Subtract the two like fractions:
168/252 - 270/252 = 168 - 270/252 = -102/252 - After reducing the fraction, the answer is -17/42
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