Answer:
[tex]1\frac{2}{3}\ kg[/tex]
Step-by-step explanation:
we know that
To find out how much the guests ate, multiply the total amount of kg of mashed potatoes by the 4/12 fraction
so
[tex]5(\frac{4}{12})=\frac{20}{12}\ kg[/tex]
convert to mixed number
[tex]\frac{20}{12}=\frac{12}{12}+\frac{8}{12}=1\frac{8}{12}\ kg[/tex]
simplify
[tex]1\frac{8}{12}=1\frac{2}{3}\ kg[/tex]