Subtract 90/12 from 1/18
1st number: 1/18, 2nd number: 7 6/12
1/18 - 90/12 is -67/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 12 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
1/18 = 1 × 2/18 × 2 = 2/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
90/12 = 90 × 3/12 × 3 = 270/36 - Subtract the two like fractions:
2/36 - 270/36 = 2 - 270/36 = -268/36 - After reducing the fraction, the answer is -67/9
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