Subtract 20/12 from 90/9
1st number: 10 0/9, 2nd number: 1 8/12
90/9 - 20/12 is 25/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 12 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
90/9 = 90 × 4/9 × 4 = 360/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
20/12 = 20 × 3/12 × 3 = 60/36 - Subtract the two like fractions:
360/36 - 60/36 = 360 - 60/36 = 300/36 - After reducing the fraction, the answer is 25/3
- In mixed form: 81/3
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