Add 28/15 and 12/9
1st number: 1 13/15, 2nd number: 1 3/9
28/15 + 12/9 is 16/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
28/15 = 28 × 3/15 × 3 = 84/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
12/9 = 12 × 5/9 × 5 = 60/45 - Add the two like fractions:
84/45 + 60/45 = 84 + 60/45 = 144/45 - 144/45 simplified gives 16/5
- So, 28/15 + 12/9 = 16/5
In mixed form: 31/5
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