4/3(6.5n-3 1/4m)-3.2(5/8n-0.5m)=
=4/3(13/2 n-13/4m)-16/5(5/8n-1/2m)=
=26/3 n-39m-2n+8/5m=
=20/3 n-37,4 m
4//3(6.5n-3 1//4m)-3.2(5//8n-0.5m)=26//3n-13//3m-3.2*(0.625n-0.5m)=26//3n-13//3m-2n+1.6m=20//3n-13//3m+1.6m=20//3n-41//15m
// - черта дроби
4/3(6.5n-3 1/4m)-3.2(5/8n-0.5m)=
=4/3(13/2 n-13/4m)-16/5(5/8n-1/2m)=
=26/3 n-39m-2n+8/5m=
=20/3 n-37,4 m
4//3(6.5n-3 1//4m)-3.2(5//8n-0.5m)=26//3n-13//3m-3.2*(0.625n-0.5m)=26//3n-13//3m-2n+1.6m=20//3n-13//3m+1.6m=20//3n-41//15m
// - черта дроби