Subtract 15/20 from 15/5
1st number: 3 0/5, 2nd number: 15/20
15/5 - 15/20 is 9/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 5 × 4 = 20,
15/5 = 15 × 4/5 × 4 = 60/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
15/20 = 15 × 1/20 × 1 = 15/20 - Subtract the two like fractions:
60/20 - 15/20 = 60 - 15/20 = 45/20 - After reducing the fraction, the answer is 9/4
- In mixed form: 21/4
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