15 choose 3 = 15!/(3!*(15-3)!) = 15!/(3!*12!) = (15*14*13)/(3*2) = 5*7*13 = 455
There are 15 because 15/5 = 3
3/3 x 1/5 = 3/15 3/3 = 1/1 = 1 Answer: 1 1/5 = 3/15
183. 15*12 +3 =183
1, 3, 5, 15
3*5=15 5*3=15 15*1=15
15 choose 3 = 15!/(3!*(15-3)!) = 15!/(3!*12!) = (15*14*13)/(3*2) = 5*7*13 = 455
There are 15 because 15/5 = 3
15
3/3 x 1/5 = 3/15 3/3 = 1/1 = 1 Answer: 1 1/5 = 3/15
15 of them because 15/5 = 3
3/15
183. 15*12 +3 =183
There are 5 thirds in 15 because 15/3 = 5, so 5 x 3 = 15.
75/15 = 15/3 = 5
1, 3, 5, 15
15/5 = 315/5 = 3