Subtract 12/15 from 9/4
1st number: 2 1/4, 2nd number: 12/15
9/4 - 12/15 is 29/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
9/4 = 9 × 15/4 × 15 = 135/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
12/15 = 12 × 4/15 × 4 = 48/60 - Subtract the two like fractions:
135/60 - 48/60 = 135 - 48/60 = 87/60 - After reducing the fraction, the answer is 29/20
- In mixed form: 19/20
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