Answers

Add 2/3 and 70/21

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

2/3 + 70/21 is 4/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 3 and 21 is 21
   
   Next, find the equivalent fraction of both fractional numbers with denominator 21
2. For the 1st fraction, since 3 × 7 = 21,
   2/3 = 2 × 7/3 × 7 = 14/21
3. Likewise, for the 2nd fraction, since 21 × 1 = 21,
   70/21 = 70 × 1/21 × 1 = 70/21
4. Add the two like fractions:
   14/21 + 70/21 = 14 + 70/21 = 84/21
5. 84/21 simplified gives 4/1
6. So, 2/3 + 70/21 = 4/1

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