Answers

Add 6/21 and 8/70

6/21 + 8/70 is 2/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 70 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 21 × 10 = 210,
   6/21 = 6 × 10/21 × 10 = 60/210
3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
   8/70 = 8 × 3/70 × 3 = 24/210
4. Add the two like fractions:
   60/210 + 24/210 = 60 + 24/210 = 84/210
5. 84/210 simplified gives 2/5
6. So, 6/21 + 8/70 = 2/5

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