caranya , 4 3per8 - 1per5 =

= ( 4 ) + 3/8 - 1/5
= ( 4 ) + 7/40
= 4 7/40

[tex]4 \frac{3}{8} - \frac{1}{5} = \frac{35}{8} - \frac{1}{5} = \frac{175}{40} - \frac{8}{40} = \frac{167}{40} [/tex]
semoga bermanfaat :')
Tapi kalo salah maaf ya