Answers

Add 27/20 and 5/90

1^st number: 1 7/20, 2^nd number: 5/90

27/20 + 5/90 is 253/180.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 90 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 20 × 9 = 180,
   27/20 = 27 × 9/20 × 9 = 243/180
3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
   5/90 = 5 × 2/90 × 2 = 10/180
4. Add the two like fractions:
   243/180 + 10/180 = 243 + 10/180 = 253/180
5. So, 27/20 + 5/90 = 253/180
   In mixed form: 173/180

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