There are 3 grams of sodium in 1/2 of a liter of soda. how much sodium is in 2/3 of a liter of soda?

4 grams

Step-by-step explanation:

Write and solve an equation of ratios:

 x         2/3 l

=

3 gr      1/2 l l

Cross-multiplying, we get (1/2) x liter  = 2 gr-liter.

Dividing both sides by 1/2 liter, we get:

      2 gr-liter               2                  

x = = grams = 4 grams

       1/2 liter              1/2                      

There are 4 grams of sodium in 2/3 of a liter of soda.

1/8 is left? add a bit more info plz