Add 28/9 and 21/84
1st number: 3 1/9, 2nd number: 21/84
28/9 + 21/84 is 121/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 9 × 28 = 252,
28/9 = 28 × 28/9 × 28 = 784/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
21/84 = 21 × 3/84 × 3 = 63/252 - Add the two like fractions:
784/252 + 63/252 = 784 + 63/252 = 847/252 - 847/252 simplified gives 121/36
- So, 28/9 + 21/84 = 121/36
In mixed form: 313/36
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