Question

Quanto é 7/25 do litro ?

Answer 1

1 litro tem 1000 mL

7/25 de 1000 = 
(7x1000)/25 = 
280 mL

Answer 2

$\dfrac{7}{25}~de~1~litro=\dfrac{7}{25}~de~1000~ml\\\\\\\dfrac{7}{25}~de~1~litro=\dfrac{7}{25}\cdot1000~ml\\\\\\\dfrac{7}{25}~de~1~litro=7\cdot40~ml\\\\\\\boxed{\boxed{\dfrac{7}{25}~de~1~litro=280~ml}}$