Answers

Add 81/56 and 20/18

1^st number: 1 25/56, 2^nd number: 1 2/18

81/56 + 20/18 is 1289/504.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 18 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 56 × 9 = 504,
   81/56 = 81 × 9/56 × 9 = 729/504
3. Likewise, for the 2nd fraction, since 18 × 28 = 504,
   20/18 = 20 × 28/18 × 28 = 560/504
4. Add the two like fractions:
   729/504 + 560/504 = 729 + 560/504 = 1289/504
5. So, 81/56 + 20/18 = 1289/504
   In mixed form: 2281/504

MathStep (Works offline)

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

Related: ⁸¹/₅₆+⁴⁰/₁₈ ⁸¹/₅₆+²⁰/₃₆ ⁸¹/₅₆+⁶⁰/₁₈ ⁸¹/₅₆+²⁰/₅₄ ⁸¹/₅₆+²⁰/₉₀

Add Fractions Calculator