Answers

Add 63/80 and 98/20

1^st number: 63/80, 2^nd number: 4 18/20

63/80 + 98/20 is 91/16.

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,
   98/20 = 98 × 4/20 × 4 = 392/80
4. Add the two like fractions:
   63/80 + 392/80 = 63 + 392/80 = 455/80
5. 455/80 simplified gives 91/16
6. So, 63/80 + 98/20 = 91/16
   In mixed form: 511/16

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