Add 6/15 and 90/81
1st number: 6/15, 2nd number: 1 9/81
6/15 + 90/81 is 68/45.
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,
6/15 = 6 × 27/15 × 27 = 162/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
90/81 = 90 × 5/81 × 5 = 450/405 - Add the two like fractions:
162/405 + 450/405 = 162 + 450/405 = 612/405 - 612/405 simplified gives 68/45
- So, 6/15 + 90/81 = 68/45
In mixed form: 123/45
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