Add 12/15 and 9/4
1st number: 12/15, 2nd number: 2 1/4
12/15 + 9/4 is 61/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 4 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
12/15 = 12 × 4/15 × 4 = 48/60 - Likewise, for the 2nd fraction, since 4 × 15 = 60,
9/4 = 9 × 15/4 × 15 = 135/60 - Add the two like fractions:
48/60 + 135/60 = 48 + 135/60 = 183/60 - 183/60 simplified gives 61/20
- So, 12/15 + 9/4 = 61/20
In mixed form: 31/20
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