Answers

Add 90/5 and 2/81

1^st number: 18 0/5, 2^nd number: 2/81

90/5 + 2/81 is 1460/81.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 81 is 405
   
   Next, find the equivalent fraction of both fractional numbers with denominator 405
2. For the 1st fraction, since 5 × 81 = 405,
   90/5 = 90 × 81/5 × 81 = 7290/405
3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
   2/81 = 2 × 5/81 × 5 = 10/405
4. Add the two like fractions:
   7290/405 + 10/405 = 7290 + 10/405 = 7300/405
5. 7300/405 simplified gives 1460/81
6. So, 90/5 + 2/81 = 1460/81
   In mixed form: 182/81

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁹⁰/₅+⁴/₈₁ ⁹⁰/₁₀+²/₈₁ ⁹⁰/₅+⁶/₈₁ ⁹⁰/₁₅+²/₈₁ ⁹⁰/₅+¹⁰/₈₁ ⁹⁰/₂₅+²/₈₁ ⁹⁰/₅+¹⁴/₈₁ ⁹⁰/₃₅+²/₈₁

Add Fractions Calculator