Answers

Add 28/56 and 63/20

1^st number: 28/56, 2^nd number: 3 3/20

28/56 + 63/20 is 73/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 20 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 56 × 5 = 280,
   28/56 = 28 × 5/56 × 5 = 140/280
3. Likewise, for the 2nd fraction, since 20 × 14 = 280,
   63/20 = 63 × 14/20 × 14 = 882/280
4. Add the two like fractions:
   140/280 + 882/280 = 140 + 882/280 = 1022/280
5. 1022/280 simplified gives 73/20
6. So, 28/56 + 63/20 = 73/20
   In mixed form: 313/20

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