найдите от 3,6% (6 7/12-3 17/36)*2,5-4 1/3:0,65

)6 7/12-3 17/36=6 21/36-3 17/36=3 4/36=3 1/92)3 1/9*2 1/2=28/9*5/2=70/9=7 7/93)4 1/3:13/20=13/3*20/13=20/3=6 2/34)7 7/9-6 2/3=7 7/9-6 6/9=1 1/95)1 1/9*0,036=10/9*36/1000=0,04