Add 90/15 and 5/81
1st number: 6 0/15, 2nd number: 5/81
90/15 + 5/81 is 491/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 15 × 27 = 405,
90/15 = 90 × 27/15 × 27 = 2430/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
5/81 = 5 × 5/81 × 5 = 25/405 - Add the two like fractions:
2430/405 + 25/405 = 2430 + 25/405 = 2455/405 - 2455/405 simplified gives 491/81
- So, 90/15 + 5/81 = 491/81
In mixed form: 65/81
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