Add 54/84 and 12/9
1st number: 54/84, 2nd number: 1 3/9
54/84 + 12/9 is 83/42.
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,
54/84 = 54 × 3/84 × 3 = 162/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
12/9 = 12 × 28/9 × 28 = 336/252 - Add the two like fractions:
162/252 + 336/252 = 162 + 336/252 = 498/252 - 498/252 simplified gives 83/42
- So, 54/84 + 12/9 = 83/42
In mixed form: 141/42
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