Answers

Add 56/20 and 63/90

1^st number: 2 16/20, 2^nd number: 63/90

56/20 + 63/90 is 7/2.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 90 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 20 × 9 = 180,
   56/20 = 56 × 9/20 × 9 = 504/180
3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
   63/90 = 63 × 2/90 × 2 = 126/180
4. Add the two like fractions:
   504/180 + 126/180 = 504 + 126/180 = 630/180
5. 630/180 simplified gives 7/2
6. So, 56/20 + 63/90 = 7/2
   In mixed form: 31/2

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