Add 81/2 and 21/9
1st number: 40 1/2, 2nd number: 2 3/9
81/2 + 21/9 is 257/6.
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,
81/2 = 81 × 9/2 × 9 = 729/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
21/9 = 21 × 2/9 × 2 = 42/18 - Add the two like fractions:
729/18 + 42/18 = 729 + 42/18 = 771/18 - 771/18 simplified gives 257/6
- So, 81/2 + 21/9 = 257/6
In mixed form: 425/6
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