Bonjour
a. 3/7 : 4/5 = 3/7 x 5/4 = 15/28
b. 6/11 : 5/4 = 6/11 x 4/5 = 24/55
c. 11/9 : 1/2 = 11/9 x 2 = 22/9
d. 15/4 : 2 = 15/4 x 1/2 = 15/8
e. 4 : 7/9 = 4 x 9/7 = 36/7
f. 3/8 : 5/7 = 3/8 x 7/5 = 21/40.
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Bonjour
a. 3/7 : 4/5 = 3/7 x 5/4 = 15/28
b. 6/11 : 5/4 = 6/11 x 4/5 = 24/55
c. 11/9 : 1/2 = 11/9 x 2 = 22/9
d. 15/4 : 2 = 15/4 x 1/2 = 15/8
e. 4 : 7/9 = 4 x 9/7 = 36/7
f. 3/8 : 5/7 = 3/8 x 7/5 = 21/40.