36 is 15% of what number?
240
5%
1/20 = 0.05
10%
1/10 = 0.1
15%
3/20 = 0.15
20%
1/5 = 0.2
25%
1/4 = 0.25
35%
7/20 = 0.35
40%
2/5 = 0.4
50%
1/2 = 0.5
60%
3/5 = 0.6
75%
3/4 = 0.75
80%
4/5 = 0.8
100%
1/1 = 1
36/15
2.4
How many black cards in a deck?
26
2000/480 is?
200/48 = 25/6 = 4 1/6
390/26 ?
15