Add 6/81 and 42/45
6/81 + 42/45 is 136/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 45 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 81 × 5 = 405,
6/81 = 6 × 5/81 × 5 = 30/405 - Likewise, for the 2nd fraction, since 45 × 9 = 405,
42/45 = 42 × 9/45 × 9 = 378/405 - Add the two like fractions:
30/405 + 378/405 = 30 + 378/405 = 408/405 - 408/405 simplified gives 136/135
- So, 6/81 + 42/45 = 136/135
In mixed form: 11/135
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