Answers

Add 80/70 and 90/70

1^st number: 1 10/70, 2^nd number: 1 20/70

80/70 + 90/70 is 17/7.

Steps for adding fractions

1. Add the two fractions:
   80/70 + 90/70 = 80 + 90/70 = 170/70
2. 170/70 simplified gives 17/7
3. So, 80/70 + 90/70 = 17/7
   In mixed form: 23/7

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