Add 21/2 and 81/18
1st number: 10 1/2, 2nd number: 4 9/18
21/2 + 81/18 is 15/1.
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,
21/2 = 21 × 9/2 × 9 = 189/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
81/18 = 81 × 1/18 × 1 = 81/18 - Add the two like fractions:
189/18 + 81/18 = 189 + 81/18 = 270/18 - 270/18 simplified gives 15/1
- So, 21/2 + 81/18 = 15/1
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