Add 12/84 and 30/9
1st number: 12/84, 2nd number: 3 3/9
12/84 + 30/9 is 73/21.
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,
12/84 = 12 × 3/84 × 3 = 36/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
30/9 = 30 × 28/9 × 28 = 840/252 - Add the two like fractions:
36/252 + 840/252 = 36 + 840/252 = 876/252 - 876/252 simplified gives 73/21
- So, 12/84 + 30/9 = 73/21
In mixed form: 310/21
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