Answers

Add 8/9 and 7/10

8/9 + 7/10 is 143/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 9 and 10 is 90
2. For the 1st fraction, since 9 × 10 = 90,
   8/9 = 8 × 10/9 × 10 = 80/90
3. Likewise, for the 2nd fraction, since 10 × 9 = 90,
   7/10 = 7 × 9/10 × 9 = 63/90
4. Add the two fractions:
   80/90 + 63/90 = 80 + 63/90 = 143/90
5. In mixed form: 153/90

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