Answers

Add 20/30 and 63/42

1^st number: 20/30, 2^nd number: 1 21/42

20/30 + 63/42 is 13/6.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 42 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 30 × 7 = 210,
   20/30 = 20 × 7/30 × 7 = 140/210
3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
   63/42 = 63 × 5/42 × 5 = 315/210
4. Add the two like fractions:
   140/210 + 315/210 = 140 + 315/210 = 455/210
5. 455/210 simplified gives 13/6
6. So, 20/30 + 63/42 = 13/6
   In mixed form: 21/6

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