Answers

Add 81/63 and 20/56

1^st number: 1 18/63, 2^nd number: 20/56

81/63 + 20/56 is 23/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 56 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 63 × 8 = 504,
   81/63 = 81 × 8/63 × 8 = 648/504
3. Likewise, for the 2nd fraction, since 56 × 9 = 504,
   20/56 = 20 × 9/56 × 9 = 180/504
4. Add the two like fractions:
   648/504 + 180/504 = 648 + 180/504 = 828/504
5. 828/504 simplified gives 23/14
6. So, 81/63 + 20/56 = 23/14
   In mixed form: 19/14

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