1.) {5/8- 1/4} : 30%= 2.) 75% + 0,2 × 1/8= 3.8,5 - 36% × 16 2/3= Pakai cara makasih :)

1) (⅝-¼) : 30%
=> (5/8-2/8) : 30/100
=> 3/8 : 3/10
=> 3/8 x 10/3
=> 8/10 = 4/5

2) 75% + 0,2 x 1/8
=> 75/100 + 2/10 x 1/8
=> 3/4 + 1/5 x 1/8
=> 3/4 + 1/40
=> 30/40 + 1/40
=> 31/40

3) 8,5 - 36% x 16 2/3
=> 85/10 - 36/100 x 50/3
=> 17/2 - 9/25 x 50/3
=> 17/2 - 6/1
=> 17/2 - 12/2
=> 15/2

itu cara panjangnya, dicek lagi ya