Answers

Add 45/72 and 15/90

45/72 + 15/90 is 19/24.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 90 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 72 × 5 = 360,
   45/72 = 45 × 5/72 × 5 = 225/360
3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
   15/90 = 15 × 4/90 × 4 = 60/360
4. Add the two like fractions:
   225/360 + 60/360 = 225 + 60/360 = 285/360
5. 285/360 simplified gives 19/24
6. So, 45/72 + 15/90 = 19/24

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