`11/2=[10+1]/2=10/2+1/2=5+0,5=5,5`
`15/4=[12+3]/4=12/4+3/4=3+0,75=3,75`
`31/5=[30+1]/5=30/5+1/5=6+0,2=6,2`
`11/2 = 11 : 2 = 5.5`
`15/4 = 15 : 4 = 3,75`
`31/5 = 31 : 5 =6,2`
\(\dfrac{11}{2}=\dfrac{10+1}{2}=\dfrac{10}{2}+\dfrac{1}{2}=5+0,5=5,5\)
15/4=3,75
31/5=6,2