Answers

Add 81/18 and 20/56

1^st number: 4 9/18, 2^nd number: 20/56

81/18 + 20/56 is 34/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 56 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 18 × 28 = 504,
   81/18 = 81 × 28/18 × 28 = 2268/504
3. Likewise, for the 2nd fraction, since 56 × 9 = 504,
   20/56 = 20 × 9/56 × 9 = 180/504
4. Add the two like fractions:
   2268/504 + 180/504 = 2268 + 180/504 = 2448/504
5. 2448/504 simplified gives 34/7
6. So, 81/18 + 20/56 = 34/7
   In mixed form: 46/7

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