Subtract 90/9 from 30/18
1st number: 1 12/18, 2nd number: 10 0/9
30/18 - 90/9 is -25/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 18 × 1 = 18,
30/18 = 30 × 1/18 × 1 = 30/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
90/9 = 90 × 2/9 × 2 = 180/18 - Subtract the two like fractions:
30/18 - 180/18 = 30 - 180/18 = -150/18 - After reducing the fraction, the answer is -25/3
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