Answers

Add 18/63 and 84/80

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

18/63 + 84/80 is 187/140.

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,
   18/63 = 18 × 80/63 × 80 = 1440/5040
3. Likewise, for the 2nd fraction, since 80 × 63 = 5040,
   84/80 = 84 × 63/80 × 63 = 5292/5040
4. Add the two like fractions:
   1440/5040 + 5292/5040 = 1440 + 5292/5040 = 6732/5040
5. 6732/5040 simplified gives 187/140
6. So, 18/63 + 84/80 = 187/140
   In mixed form: 147/140

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