Add 81/2 and 2/5
1st number: 40 1/2, 2nd number: 2/5
81/2 + 2/5 is 409/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 5 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 2 × 5 = 10,
81/2 = 81 × 5/2 × 5 = 405/10 - Likewise, for the 2nd fraction, since 5 × 2 = 10,
2/5 = 2 × 2/5 × 2 = 4/10 - Add the two like fractions:
405/10 + 4/10 = 405 + 4/10 = 409/10 - So, 81/2 + 2/5 = 409/10
In mixed form: 409/10
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