Add 21/2 and 21/9
1st number: 10 1/2, 2nd number: 2 3/9
21/2 + 21/9 is 77/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 2 × 9 = 18,
21/2 = 21 × 9/2 × 9 = 189/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
21/9 = 21 × 2/9 × 2 = 42/18 - Add the two like fractions:
189/18 + 42/18 = 189 + 42/18 = 231/18 - 231/18 simplified gives 77/6
- So, 21/2 + 21/9 = 77/6
In mixed form: 125/6
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