Subtract 20/18 from 45/12
1st number: 3 9/12, 2nd number: 1 2/18
45/12 - 20/18 is 95/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
45/12 = 45 × 3/12 × 3 = 135/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
20/18 = 20 × 2/18 × 2 = 40/36 - Subtract the two like fractions:
135/36 - 40/36 = 135 - 40/36 = 95/36 - In mixed form: 223/36
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