Answers

Add 49/90 and 21/60

49/90 + 21/60 is 161/180.

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,
   49/90 = 49 × 2/90 × 2 = 98/180
3. Likewise, for the 2nd fraction, since 60 × 3 = 180,
   21/60 = 21 × 3/60 × 3 = 63/180
4. Add the two like fractions:
   98/180 + 63/180 = 98 + 63/180 = 161/180
5. So, 49/90 + 21/60 = 161/180

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