Answers

Add 49/20 and 6/70

1^st number: 2 9/20, 2^nd number: 6/70

49/20 + 6/70 is 71/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 70 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 20 × 7 = 140,
   49/20 = 49 × 7/20 × 7 = 343/140
3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
   6/70 = 6 × 2/70 × 2 = 12/140
4. Add the two like fractions:
   343/140 + 12/140 = 343 + 12/140 = 355/140
5. 355/140 simplified gives 71/28
6. So, 49/20 + 6/70 = 71/28
   In mixed form: 215/28

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