Subtract 3/12 from 75/20
1st number: 3 15/20, 2nd number: 3/12
75/20 - 3/12 is 7/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
75/20 = 75 × 3/20 × 3 = 225/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
3/12 = 3 × 5/12 × 5 = 15/60 - Subtract the two like fractions:
225/60 - 15/60 = 225 - 15/60 = 210/60 - After reducing the fraction, the answer is 7/2
- In mixed form: 31/2
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