Answers

Add 20/30 and 84/63

1^st number: 20/30, 2^nd number: 1 21/63

20/30 + 84/63 is 2/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 63 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 30 × 21 = 630,
   20/30 = 20 × 21/30 × 21 = 420/630
3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
   84/63 = 84 × 10/63 × 10 = 840/630
4. Add the two like fractions:
   420/630 + 840/630 = 420 + 840/630 = 1260/630
5. 1260/630 simplified gives 2/1
6. So, 20/30 + 84/63 = 2/1

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