Add 42/81 and 14/5
1st number: 42/81, 2nd number: 2 4/5
42/81 + 14/5 is 448/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 5 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 81 × 5 = 405,
42/81 = 42 × 5/81 × 5 = 210/405 - Likewise, for the 2nd fraction, since 5 × 81 = 405,
14/5 = 14 × 81/5 × 81 = 1134/405 - Add the two like fractions:
210/405 + 1134/405 = 210 + 1134/405 = 1344/405 - 1344/405 simplified gives 448/135
- So, 42/81 + 14/5 = 448/135
In mixed form: 343/135
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