Subtract 90/84 from 9/18
1st number: 9/18, 2nd number: 1 6/84
9/18 - 90/84 is -4/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
9/18 = 9 × 14/18 × 14 = 126/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
90/84 = 90 × 3/84 × 3 = 270/252 - Subtract the two like fractions:
126/252 - 270/252 = 126 - 270/252 = -144/252 - After reducing the fraction, the answer is -4/7
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