From what I can understand, it says to write the rational numbers in the form of fractions. +6=6/10 8=8/10 or +6,8= 6 4/5 -0,375=-375/1000 -0,02=-2/100 0,07=7/100
155.6 CM I divided 168 by 100 to find 1% then i got 1.68cm then I times that by 5 to find 5% which was 8.4cm. Finally I subtracted 168 and 8.4 to get 155.6 CM I hope that helped :)
