He died and left behind a wife, two sons and three daughters

Praise be to Allah.

If the father dies and leaves behind a wife, two sons and three daughters, then the wife gets one-eighth, because Allaah says (interpretation of the meaning): 

“if you leave a child, they [wives] get an eighth of that which you leave”

[al-Nisa’ 4:12]

The rest goes to the children (males and females), with each male getting the share of two females, because Allaah says (interpretation of the meaning): 

“Allaah commands you as regards your children’s (inheritance): to the male, a portion equal to that of two females”

[al-Nisa’ 4:11] 

Based on that: 

The wife’s share is 2500 dinars. 

The share of each male is 5000 dinars. 

The share of each female is 2500 dinars. 

And Allaah knows best.