Add 28/5 and 40/81
1st number: 5 3/5, 2nd number: 40/81
28/5 + 40/81 is 2468/405.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 5 × 81 = 405,
28/5 = 28 × 81/5 × 81 = 2268/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
40/81 = 40 × 5/81 × 5 = 200/405 - Add the two like fractions:
2268/405 + 200/405 = 2268 + 200/405 = 2468/405 - So, 28/5 + 40/81 = 2468/405
In mixed form: 638/405
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