Answers

Add 90/10 and 90/9

1^st number: 9 0/10, 2^nd number: 10 0/9

90/10 + 90/9 is 19/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 9 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 10 × 9 = 90,
   90/10 = 90 × 9/10 × 9 = 810/90
3. Likewise, for the 2nd fraction, since 9 × 10 = 90,
   90/9 = 90 × 10/9 × 10 = 900/90
4. Add the two like fractions:
   810/90 + 900/90 = 810 + 900/90 = 1710/90
5. 1710/90 simplified gives 19/1
6. So, 90/10 + 90/9 = 19/1

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