85,51:0,17+140,41:1,9-84,8*0,16+70,72*0,9=... (15,94+17,54):(10,96+16,04)+3,72-1,901=...

Question

85,51:0,17+140,41:1,9-84,8*0,16+70,72*0,9=... (15,94+17,54):(10,96+16,04)+3,72-1,901=...

Answer 1

3/4x=0.75x
0.75x+0.2x= 1 2/3+3/2
0.95x=10/6+9/6
0.95x=19/6
19/20x=19/6
19x×6=19×20
6x=20
x=20/6=10/3=3 1/3