Answers

Add 70/21 and 80/30

1^st number: 3 7/21, 2^nd number: 2 20/30

70/21 + 80/30 is 6/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 30 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 21 × 10 = 210,
   70/21 = 70 × 10/21 × 10 = 700/210
3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
   80/30 = 80 × 7/30 × 7 = 560/210
4. Add the two like fractions:
   700/210 + 560/210 = 700 + 560/210 = 1260/210
5. 1260/210 simplified gives 6/1
6. So, 70/21 + 80/30 = 6/1

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