Add 84/5 and 21/9
1st number: 16 4/5, 2nd number: 2 3/9
84/5 + 21/9 is 287/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 5 × 9 = 45,
84/5 = 84 × 9/5 × 9 = 756/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
21/9 = 21 × 5/9 × 5 = 105/45 - Add the two like fractions:
756/45 + 105/45 = 756 + 105/45 = 861/45 - 861/45 simplified gives 287/15
- So, 84/5 + 21/9 = 287/15
In mixed form: 192/15
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