Answers

Add 80/63 and 60/18

1^st number: 1 17/63, 2^nd number: 3 6/18

80/63 + 60/18 is 290/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 18 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 63 × 2 = 126,
   80/63 = 80 × 2/63 × 2 = 160/126
3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
   60/18 = 60 × 7/18 × 7 = 420/126
4. Add the two like fractions:
   160/126 + 420/126 = 160 + 420/126 = 580/126
5. 580/126 simplified gives 290/63
6. So, 80/63 + 60/18 = 290/63
   In mixed form: 438/63

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