Add 21/9 and 5/4
1st number: 2 3/9, 2nd number: 1 1/4
21/9 + 5/4 is 43/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
21/9 = 21 × 4/9 × 4 = 84/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
5/4 = 5 × 9/4 × 9 = 45/36 - Add the two like fractions:
84/36 + 45/36 = 84 + 45/36 = 129/36 - 129/36 simplified gives 43/12
- So, 21/9 + 5/4 = 43/12
In mixed form: 37/12
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