Alright here we go.
Number 8= -2/5
Number 9 = -18.3/25
Number 10 = 1/5 ?
Number 8 = Divide -0.4 by 1 to get the fraction of -0.4/1 and multiply both sides by 5 to get simplified of -2/5.
Number 9 = Divide by 10 to get -7.32/10 and multiply by 100 to get -732/1000. Then divide both sides by 40 to get -18.3/25.
Number 10 = Might be right or wrong but since it's 0.2, this simplifies to 2/10, which equals 1/5.
Hope this helps.
