Answers

Add 7/9 and 9/10

7/9 + 9/10 is 151/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 9 and 10 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 9 × 10 = 90,
   7/9 = 7 × 10/9 × 10 = 70/90
3. Likewise, for the 2nd fraction, since 10 × 9 = 90,
   9/10 = 9 × 9/10 × 9 = 81/90
4. Add the two like fractions:
   70/90 + 81/90 = 70 + 81/90 = 151/90
5. So, 7/9 + 9/10 = 151/90
   In mixed form: 161/90

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