Answers

Add 63/80 and 40/20

1^st number: 63/80, 2^nd number: 2 0/20

63/80 + 40/20 is 223/80.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 20 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 80 × 1 = 80,
   63/80 = 63 × 1/80 × 1 = 63/80
3. Likewise, for the 2nd fraction, since 20 × 4 = 80,
   40/20 = 40 × 4/20 × 4 = 160/80
4. Add the two like fractions:
   63/80 + 160/80 = 63 + 160/80 = 223/80
5. So, 63/80 + 40/20 = 223/80
   In mixed form: 263/80

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