Minutes - Decimal
1- 0.017
2- 0.033
3- 0.050
4- 0.067
5- 0.083
6- 0.100
7- 0.117
8- 0.133
9- 0.150
10- 0.167
11- 0.183
12- 0.200
13- 0.217
14- 0.233
15- 0.250
16- 0.267
17- 0.283
18- 0.300
19- 0.317
20- 0.333
21- 0.350
22- 0.367
23- 0.383
24- 0.400
25- 0.417
26- 0.433
27- 0.450
28- 0.467
29- 0.483
30- 0.500
31- 0.517
32- 0.533
33- 0.550
34- 0.567
35- 0.583
36- 0.600
37-- 0.617
38- 0.633
39- 0.650
40- 0.667
41- 0.683
42- 0.700
43- 0.717
44- 0.733
45- 0.750
46- 0.767
47- 0.783
48- 0.800
49- 0.817
50- 0.833
51- 0.850
52- 0.867
53- 0.883
54- 0.900
55- 0.917
56- 0.933
57- 0.950
58- 0.967
59- 0.983
60- 1.000
One way to do it. Print and use 'till you memorize it. You will.