Ini caranya gmn ya kak 2/5×0, 4 : ( 3/8-0, 075) =

llkkkkkkkklllllllllllll

2/5 x 0,4 : (3/8 - 0,075)
= 2/5 x 4/10 : (3/8 - 75/1000)
= 2/5 x 4/10 : ( 375/1000 - 75/1000)
= 2/5 x 4/10 : 300/1000
= 8/50 : 300/1000
= 8/50 x 1000/300
= 8/5 x 100/300
= 800/ 1500
= 8/15