Answers

Add 20/63 and 80/18

1^st number: 20/63, 2^nd number: 4 8/18

20/63 + 80/18 is 100/21.

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,
   20/63 = 20 × 2/63 × 2 = 40/126
3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
   80/18 = 80 × 7/18 × 7 = 560/126
4. Add the two like fractions:
   40/126 + 560/126 = 40 + 560/126 = 600/126
5. 600/126 simplified gives 100/21
6. So, 20/63 + 80/18 = 100/21
   In mixed form: 416/21

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