tolong di jwab secepatny

no.4adalah c no.5adalahd.5

4. 2 1/3 : 1 2/5
= 7/3 : 7/5
= 7/3 x 5/7
B.3/5

5. 10/32 x 52/65 :0,05
= 5/16 x 52/65 : 5/100
= 5/16 x 52/65 x 20/1
D. 5