Add 70/80 and 28/9
1st number: 70/80, 2nd number: 3 1/9
70/80 + 28/9 is 287/72.
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,
70/80 = 70 × 9/80 × 9 = 630/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
28/9 = 28 × 80/9 × 80 = 2240/720 - Add the two like fractions:
630/720 + 2240/720 = 630 + 2240/720 = 2870/720 - 2870/720 simplified gives 287/72
- So, 70/80 + 28/9 = 287/72
In mixed form: 371/72
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