Answers

Add 70/20 and 15/30

1^st number: 3 10/20, 2^nd number: 15/30

70/20 + 15/30 is 4/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 30 is 60
   
   Next, find the equivalent fraction of both fractional numbers with denominator 60
2. For the 1st fraction, since 20 × 3 = 60,
   70/20 = 70 × 3/20 × 3 = 210/60
3. Likewise, for the 2nd fraction, since 30 × 2 = 60,
   15/30 = 15 × 2/30 × 2 = 30/60
4. Add the two like fractions:
   210/60 + 30/60 = 210 + 30/60 = 240/60
5. 240/60 simplified gives 4/1
6. So, 70/20 + 15/30 = 4/1

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