Answers

Add 20/90 and 9/60

20/90 + 9/60 is 67/180.

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,
   20/90 = 20 × 2/90 × 2 = 40/180
3. Likewise, for the 2nd fraction, since 60 × 3 = 180,
   9/60 = 9 × 3/60 × 3 = 27/180
4. Add the two like fractions:
   40/180 + 27/180 = 40 + 27/180 = 67/180
5. So, 20/90 + 9/60 = 67/180

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