Subtract 30/9 from 45/12
1st number: 3 9/12, 2nd number: 3 3/9
45/12 - 30/9 is 5/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 9 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 9 × 4 = 36,
30/9 = 30 × 4/9 × 4 = 120/36 - Subtract the two like fractions:
135/36 - 120/36 = 135 - 120/36 = 15/36 - After reducing the fraction, the answer is 5/12
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