Add 9/4 and 80/15
1st number: 2 1/4, 2nd number: 5 5/15
9/4 + 80/15 is 91/12.
Steps for adding 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,
80/15 = 80 × 4/15 × 4 = 320/60 - Add the two like fractions:
135/60 + 320/60 = 135 + 320/60 = 455/60 - 455/60 simplified gives 91/12
- So, 9/4 + 80/15 = 91/12
In mixed form: 77/12
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