Step-by-step explanation:
#1
[tex]\\ \sf\longmapsto \dfrac{5}{4.2}=1.19=1.2[/tex]
#2
[tex]\\ \sf\longmapsto \dfrac{5}{6.2}=0.8[/tex]
#3
[tex]\\ \sf\longmapsto \dfrac{9}{18}=\dfrac{1}{2}=0.5[/tex]
#4
[tex]\\ \sf\longmapsto \dfrac{52}{3.5038}=1.48=1.5[/tex]
#5
[tex]\\ \sf\longmapsto \dfrac{23}{1.8078}=0.127=0.13[/tex]
#6
[tex]\\ \sf\longmapsto \dfrac{15}{0.5655}=0.26=0.3[/tex]