Answers

Add 20/42 and 35/30

1^st number: 20/42, 2^nd number: 1 5/30

20/42 + 35/30 is 23/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 30 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 42 × 5 = 210,
   20/42 = 20 × 5/42 × 5 = 100/210
3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
   35/30 = 35 × 7/30 × 7 = 245/210
4. Add the two like fractions:
   100/210 + 245/210 = 100 + 245/210 = 345/210
5. 345/210 simplified gives 23/14
6. So, 20/42 + 35/30 = 23/14
   In mixed form: 19/14

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