Add 4/84 and 12/9
1st number: 4/84, 2nd number: 1 3/9
4/84 + 12/9 is 29/21.
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,
4/84 = 4 × 3/84 × 3 = 12/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
12/9 = 12 × 28/9 × 28 = 336/252 - Add the two like fractions:
12/252 + 336/252 = 12 + 336/252 = 348/252 - 348/252 simplified gives 29/21
- So, 4/84 + 12/9 = 29/21
In mixed form: 18/21
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