Question

((17,65-9 1/4)*2,05-3,9*2/5):2,8 помогите решить

Answer 1

((17,65-9 1/4)*2,05-3,9*2/5):2,8=((17,65-9,25)*2,05-3,9*0,4):2,8=(8,4*2,05-1,56):2,8=(17,22-1,56):2,8=15,66:2,8=156,6:28=5 83/140

Answer 2

((17,65-9 1/4)*2,05-3,9*2/5):2,8=
17,65-9 1/4=17,65-9,25=8,4
8,4*2,05=17,22
3,9*2/5=3,9*0,4=1,56
17,22-1,56=15,66
15,66:2,8= 1566/100:14/5=1566/280=783/140=5 83/140