Answers

Add 18/80 and 84/63

1^st number: 18/80, 2^nd number: 1 21/63

18/80 + 84/63 is 187/120.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 63 is 5040
   
   Next, find the equivalent fraction of both fractional numbers with denominator 5040
2. For the 1st fraction, since 80 × 63 = 5040,
   18/80 = 18 × 63/80 × 63 = 1134/5040
3. Likewise, for the 2nd fraction, since 63 × 80 = 5040,
   84/63 = 84 × 80/63 × 80 = 6720/5040
4. Add the two like fractions:
   1134/5040 + 6720/5040 = 1134 + 6720/5040 = 7854/5040
5. 7854/5040 simplified gives 187/120
6. So, 18/80 + 84/63 = 187/120
   In mixed form: 167/120

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