Answers

Add 72/63 and 6/80

1^st number: 1 9/63, 2^nd number: 6/80

72/63 + 6/80 is 341/280.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 80 is 5040
   
   Next, find the equivalent fraction of both fractional numbers with denominator 5040
2. For the 1st fraction, since 63 × 80 = 5040,
   72/63 = 72 × 80/63 × 80 = 5760/5040
3. Likewise, for the 2nd fraction, since 80 × 63 = 5040,
   6/80 = 6 × 63/80 × 63 = 378/5040
4. Add the two like fractions:
   5760/5040 + 378/5040 = 5760 + 378/5040 = 6138/5040
5. 6138/5040 simplified gives 341/280
6. So, 72/63 + 6/80 = 341/280
   In mixed form: 161/280

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