Add 21/27 and 12/4
1st number: 21/27, 2nd number: 3 0/4
21/27 + 12/4 is 34/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 4 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 27 × 4 = 108,
21/27 = 21 × 4/27 × 4 = 84/108 - Likewise, for the 2nd fraction, since 4 × 27 = 108,
12/4 = 12 × 27/4 × 27 = 324/108 - Add the two like fractions:
84/108 + 324/108 = 84 + 324/108 = 408/108 - 408/108 simplified gives 34/9
- So, 21/27 + 12/4 = 34/9
In mixed form: 37/9
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