Question

4) (73,6 - 72-5) 4 7 : 6 + 15 13 3 (20 ²/3 - 19³1);​

Answer 1

4)-3,4*4*7:6+15*13*3*(400/3-6859)= -13,6*7:6+195*3*(400/-6856)=

-22,12:6+585*(-50/857)=

-553/150+(-29250/857)=

-4861421/128550