Add 30/5 and 90/81
1st number: 6 0/5, 2nd number: 1 9/81
30/5 + 90/81 is 64/9.
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,
30/5 = 30 × 81/5 × 81 = 2430/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
90/81 = 90 × 5/81 × 5 = 450/405 - Add the two like fractions:
2430/405 + 450/405 = 2430 + 450/405 = 2880/405 - 2880/405 simplified gives 64/9
- So, 30/5 + 90/81 = 64/9
In mixed form: 71/9
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