Add 12/9 and 21/36
1st number: 1 3/9, 2nd number: 21/36
12/9 + 21/36 is 23/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
12/9 = 12 × 4/9 × 4 = 48/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
21/36 = 21 × 1/36 × 1 = 21/36 - Add the two like fractions:
48/36 + 21/36 = 48 + 21/36 = 69/36 - 69/36 simplified gives 23/12
- So, 12/9 + 21/36 = 23/12
In mixed form: 111/12
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