Add 28/80 and 15/9
1st number: 28/80, 2nd number: 1 6/9
28/80 + 15/9 is 121/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 9 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
28/80 = 28 × 9/80 × 9 = 252/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
15/9 = 15 × 80/9 × 80 = 1200/720 - Add the two like fractions:
252/720 + 1200/720 = 252 + 1200/720 = 1452/720 - 1452/720 simplified gives 121/60
- So, 28/80 + 15/9 = 121/60
In mixed form: 21/60
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