Add 27/9 and 21/84
1st number: 3 0/9, 2nd number: 21/84
27/9 + 21/84 is 13/4.
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,
27/9 = 27 × 28/9 × 28 = 756/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
21/84 = 21 × 3/84 × 3 = 63/252 - Add the two like fractions:
756/252 + 63/252 = 756 + 63/252 = 819/252 - 819/252 simplified gives 13/4
- So, 27/9 + 21/84 = 13/4
In mixed form: 31/4
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