`11/25 + 11/5 - 9/20 + 3/2`
`= 66/25 - 9/20 + 3/2`
`= 2,19 + 1,5`
`= 3,69`
`11/25` + `11/5` - `9/20` + `3/2`
= `66/25` - `9/20` + `3/2`
= `219/100` + `3/2`
=`369/100`
\(\dfrac{11}{25}+\dfrac{11}{5}-\dfrac{9}{20}+\dfrac{3}{2}\\ =\dfrac{11}{25}+\dfrac{55}{25}-\dfrac{9}{20}+\dfrac{30}{20}+\dfrac{3}{2}\\ =\dfrac{66}{25}-\dfrac{39}{20}+\dfrac{3}{2}\\ =\dfrac{69}{100}+\dfrac{3}{2}\\ =\dfrac{369}{100}\)