Answers

Add 28/20 and 60/63

1^st number: 1 8/20, 2^nd number: 60/63

28/20 + 60/63 is 247/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 63 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 20 × 63 = 1260,
   28/20 = 28 × 63/20 × 63 = 1764/1260
3. Likewise, for the 2nd fraction, since 63 × 20 = 1260,
   60/63 = 60 × 20/63 × 20 = 1200/1260
4. Add the two like fractions:
   1764/1260 + 1200/1260 = 1764 + 1200/1260 = 2964/1260
5. 2964/1260 simplified gives 247/105
6. So, 28/20 + 60/63 = 247/105
   In mixed form: 237/105

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