Add 40/5 and 2/81
1st number: 8 0/5, 2nd number: 2/81
40/5 + 2/81 is 650/81.
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,
40/5 = 40 × 81/5 × 81 = 3240/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
2/81 = 2 × 5/81 × 5 = 10/405 - Add the two like fractions:
3240/405 + 10/405 = 3240 + 10/405 = 3250/405 - 3250/405 simplified gives 650/81
- So, 40/5 + 2/81 = 650/81
In mixed form: 82/81
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