Subtract 45/30 from 75/20
1st number: 3 15/20, 2nd number: 1 15/30
75/20 - 45/30 is 9/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 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 30 × 2 = 60,
45/30 = 45 × 2/30 × 2 = 90/60 - Subtract the two like fractions:
225/60 - 90/60 = 225 - 90/60 = 135/60 - After reducing the fraction, the answer is 9/4
- In mixed form: 21/4
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