Answers

Add 84/49 and 6/20

1^st number: 1 35/49, 2^nd number: 6/20

84/49 + 6/20 is 141/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 20 is 980
   
   Next, find the equivalent fraction of both fractional numbers with denominator 980
2. For the 1st fraction, since 49 × 20 = 980,
   84/49 = 84 × 20/49 × 20 = 1680/980
3. Likewise, for the 2nd fraction, since 20 × 49 = 980,
   6/20 = 6 × 49/20 × 49 = 294/980
4. Add the two like fractions:
   1680/980 + 294/980 = 1680 + 294/980 = 1974/980
5. 1974/980 simplified gives 141/70
6. So, 84/49 + 6/20 = 141/70
   In mixed form: 21/70

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