Add 81/2 and 20/18
1st number: 40 1/2, 2nd number: 1 2/18
81/2 + 20/18 is 749/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 18 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 18 × 1 = 18,
20/18 = 20 × 1/18 × 1 = 20/18 - Add the two like fractions:
729/18 + 20/18 = 729 + 20/18 = 749/18 - So, 81/2 + 20/18 = 749/18
In mixed form: 4111/18
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