Respuesta :

3/5
15/5=3
3*3=9
9 students packed lunches
3/5 of them packed their lunches. "Of" refers to multiplication. 
3/5 * 15/1 The number of students total is 15. You multiply the fractions to get 45/5 which equals 9. 
9 students packed their lunches. Hope this helps!

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