Answers

Add 80/49 and 84/70

1^st number: 1 31/49, 2^nd number: 1 14/70

80/49 + 84/70 is 694/245.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 70 is 490
   
   Next, find the equivalent fraction of both fractional numbers with denominator 490
2. For the 1st fraction, since 49 × 10 = 490,
   80/49 = 80 × 10/49 × 10 = 800/490
3. Likewise, for the 2nd fraction, since 70 × 7 = 490,
   84/70 = 84 × 7/70 × 7 = 588/490
4. Add the two like fractions:
   800/490 + 588/490 = 800 + 588/490 = 1388/490
5. 1388/490 simplified gives 694/245
6. So, 80/49 + 84/70 = 694/245
   In mixed form: 2204/245

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