Answers

Add 8/90 and 90/60

1^st number: 8/90, 2^nd number: 1 30/60

8/90 + 90/60 is 143/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 60 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 90 × 2 = 180,
   8/90 = 8 × 2/90 × 2 = 16/180
3. Likewise, for the 2nd fraction, since 60 × 3 = 180,
   90/60 = 90 × 3/60 × 3 = 270/180
4. Add the two like fractions:
   16/180 + 270/180 = 16 + 270/180 = 286/180
5. 286/180 simplified gives 143/90
6. So, 8/90 + 90/60 = 143/90
   In mixed form: 153/90

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