Add 30/81 and 40/45
30/81 + 40/45 is 34/27.
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,
30/81 = 30 × 5/81 × 5 = 150/405 - Likewise, for the 2nd fraction, since 45 × 9 = 405,
40/45 = 40 × 9/45 × 9 = 360/405 - Add the two like fractions:
150/405 + 360/405 = 150 + 360/405 = 510/405 - 510/405 simplified gives 34/27
- So, 30/81 + 40/45 = 34/27
In mixed form: 17/27
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