Answers

Add 90/9 and 60/40

1^st number: 10 0/9, 2^nd number: 1 20/40

90/9 + 60/40 is 23/2.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 9 and 40 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 9 × 40 = 360,
   90/9 = 90 × 40/9 × 40 = 3600/360
3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
   60/40 = 60 × 9/40 × 9 = 540/360
4. Add the two like fractions:
   3600/360 + 540/360 = 3600 + 540/360 = 4140/360
5. 4140/360 simplified gives 23/2
6. So, 90/9 + 60/40 = 23/2
   In mixed form: 111/2

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