Answers

Add 63/56 and 20/18

1^st number: 1 7/56, 2^nd number: 1 2/18

63/56 + 20/18 is 161/72.

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,
   63/56 = 63 × 9/56 × 9 = 567/504
3. Likewise, for the 2nd fraction, since 18 × 28 = 504,
   20/18 = 20 × 28/18 × 28 = 560/504
4. Add the two like fractions:
   567/504 + 560/504 = 567 + 560/504 = 1127/504
5. 1127/504 simplified gives 161/72
6. So, 63/56 + 20/18 = 161/72
   In mixed form: 217/72

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