-0.4 = -4/10 which is simplified to -2/5

Answer: -0.4=-(2/5) ----------------------- 0.4=0.1+0.1+0.1+0.1 =(1/10)+(1/10)+(1/10)+(1/10) =(4/10) =2/5 Therefore, -0.4=-(2/5)