Réponses

2014-02-14T21:02:27+01:00
1h = 60 min
a. 30/60 =1/2 h
b. 15/60= 1/4 h
c. 45/60 = 3/4 h
d. 20/60 = 1/3 h
e. 10/60 = 1/6 h
f. 6/60 = 1/10 h
2014-02-14T21:08:23+01:00
1h = 60 min

(a)  30/60 =1/2 h

(b)  15/60= 1/4 h

(c)  45/60 = 3/4 h

(d)  20/60 = 1/3 h

(e) 10/60 = 1/6 h

(f)  6/60 = 1/10 h