Add 80/84 and 15/9
1st number: 80/84, 2nd number: 1 6/9
80/84 + 15/9 is 55/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
80/84 = 80 × 3/84 × 3 = 240/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
15/9 = 15 × 28/9 × 28 = 420/252 - Add the two like fractions:
240/252 + 420/252 = 240 + 420/252 = 660/252 - 660/252 simplified gives 55/21
- So, 80/84 + 15/9 = 55/21
In mixed form: 213/21
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