Răspuns :
a)11/2÷3/4=11/2×4/3 simplificăm 4şi2=>22/3
b) 6/1÷2/3=6/1×3/2 simplificăm 6şi2=>9
c)4/5÷10/1=4/5×1/10 simplificăm 4şi10=>2/25
d)11/7÷9/1=11/7×1/9=11/63
e)2/3:2/4:2/5=2/3×8/10=8/15 simplificat 8şi10
f)4/1:2/1 =4/1×1/2=2
g)2/11:1/3=6/11
h)6/5×65/72simplificăm 6şi72=>65/6
b) 6/1÷2/3=6/1×3/2 simplificăm 6şi2=>9
c)4/5÷10/1=4/5×1/10 simplificăm 4şi10=>2/25
d)11/7÷9/1=11/7×1/9=11/63
e)2/3:2/4:2/5=2/3×8/10=8/15 simplificat 8şi10
f)4/1:2/1 =4/1×1/2=2
g)2/11:1/3=6/11
h)6/5×65/72simplificăm 6şi72=>65/6