Answers

Add 81/45 and 18/54

1^st number: 1 36/45, 2^nd number: 18/54

81/45 + 18/54 is 32/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 54 is 270
   
   Next, find the equivalent fraction of both fractional numbers with denominator 270
2. For the 1st fraction, since 45 × 6 = 270,
   81/45 = 81 × 6/45 × 6 = 486/270
3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
   18/54 = 18 × 5/54 × 5 = 90/270
4. Add the two like fractions:
   486/270 + 90/270 = 486 + 90/270 = 576/270
5. 576/270 simplified gives 32/15
6. So, 81/45 + 18/54 = 32/15
   In mixed form: 22/15

MathStep (Works offline)

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

Related: ⁸¹/₄₅+³⁶/₅₄ ⁸¹/₉₀+¹⁸/₅₄ ⁸¹/₄₅+⁹⁰/₅₄

Add Fractions Calculator