Add 21/9 and 63/84
1st number: 2 3/9, 2nd number: 63/84
21/9 + 63/84 is 37/12.
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,
21/9 = 21 × 28/9 × 28 = 588/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
63/84 = 63 × 3/84 × 3 = 189/252 - Add the two like fractions:
588/252 + 189/252 = 588 + 189/252 = 777/252 - 777/252 simplified gives 37/12
- So, 21/9 + 63/84 = 37/12
In mixed form: 31/12
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