Subtract 45/60 from 72/20
1st number: 3 12/20, 2nd number: 45/60
72/20 - 45/60 is 57/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
72/20 = 72 × 3/20 × 3 = 216/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
45/60 = 45 × 1/60 × 1 = 45/60 - Subtract the two like fractions:
216/60 - 45/60 = 216 - 45/60 = 171/60 - After reducing the fraction, the answer is 57/20
- In mixed form: 217/20
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