Question

The cafe served 13 mugs of green tea and 11 mugs of coffee. Each mug of tea contained 3/4 cup of tea, while each mug of coffee contained 2/3 cup of coffee. Did the cafe serve more coffee or more tea?

Answer 1

The cafe served more tea.

one cup of green tea has
$\frac{3}{4}$
so you multiply that by 13.
$\frac{3}{4} \times \frac{13}{1}$
you get
$\frac{39}{4}$
divide that to find the amount of green tea. your answer for the green tea will be 9.75.

do the Same for the coffee.
$\frac{11}{1} \times \frac{2}{ 3} = \frac{22}{3} = 7.3333$

Green tea: 9.75
coffee: 7.333

The cafe served more green tea

Answer 2

3/4=9/12
2/3=8/12

they served more tea