Subtract 40/25 from 45/12
1st number: 3 9/12, 2nd number: 1 15/25
45/12 - 40/25 is 43/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 25 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 12 × 25 = 300,
45/12 = 45 × 25/12 × 25 = 1125/300 - Likewise, for the 2nd fraction, since 25 × 12 = 300,
40/25 = 40 × 12/25 × 12 = 480/300 - Subtract the two like fractions:
1125/300 - 480/300 = 1125 - 480/300 = 645/300 - After reducing the fraction, the answer is 43/20
- In mixed form: 23/20
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