Answers

Add 28/90 and 15/36

28/90 + 15/36 is 131/180.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 36 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 90 × 2 = 180,
   28/90 = 28 × 2/90 × 2 = 56/180
3. Likewise, for the 2nd fraction, since 36 × 5 = 180,
   15/36 = 15 × 5/36 × 5 = 75/180
4. Add the two like fractions:
   56/180 + 75/180 = 56 + 75/180 = 131/180
5. So, 28/90 + 15/36 = 131/180

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