Bonsoir
7/11 / 4/5
= 7/11 x 5/4
= (7 x 5)/(11 x 4)
= 35/44
-2/7 : 3/4
= -2/7 x 4/3
= (-2 x 4)/(7 x 3)
= -8/21
-2/3 : 14/-5
= -2/3 x -5/14
= (2 x 5)/(3 x 14)
= (2 x 5)/(3 x 2 x 7)
= 5/(3 x 7)
= 5/21
-4/-5 : 6/-15
= 4/5 x (-15/6)
= (-4 x 15)/(5 x 6)
= (-2 x 2 x 3 x 5)/(5 x 2 x 3)
= (-2)/1
= (-2)
8/-5 : 4/-3
= 8/5 x 3/4
= (8 x 3)/(5 x 4)
= (2 x 4 x 3)/(5 x 4)
= (2 x 3)/5
= 6/5
-10/-9 : 5/-3
= 10/9 x (-3/5)
= (-10 x 3)/(9 x 5)
= (-2 x 5 x 3)/(3 x 3 x 5)
= -2/3
-(-2/-11) : -6/-7
= (-2/11) x 7/6
= (-2 x 7)/(11 x 6)
= (-2 x 7)/(11 x 2 x 3)
= -7/(11 x 3)
= -7/33
-7 : 10/-21
= 7 x 21/10
= 147/10
-8/-7 : (-6)
= -8/7 x 1/6
= (-2 x 4 x 1)/(7 x 2 x 3)
= -4/21
