Question

me ajudem a responder​

Answer 1

Resposta:

$a) \,\, 2\dfrac{1}{2} + \dfrac{1}{2}\\\\2+\dfrac{1}{2} + \dfrac{1}{2}\\\\\\\dfrac{5}{2}+\dfrac{3}{2} = \dfrac{8}{2} = 4\,L\\\\b)\, 2+\dfrac{1}{2} \rightarrow \dfrac{5}{2} - \dfrac{1}{2} = \dfrac{4}{2}= 2\, L\\\\c)\, \dfrac{5}{2}-2 = \dfrac{1}{2} \, L\\\\d) \, 3-\dfrac{1}{4} = \dfrac{11}{4}=2,75 \, L$