Victoria has a 2 pound package of flour. She uses 2/5 of the flour to make a pizza. She then uses 3/10 of the remaining flour to make bread. Find the weight of the package of flour that she has left.

They told us how much Victoria used in fractions. 
1. Add up the total amount she used.
2/5 + 3/10 = total amount used

Make both denominators the same.
2/5(2/2) + 3/10 = total amount used
4/10 + 3/10 = total amount used
7/10 = total amount used

2. Find out how much is left.
If she used 7/10 of the total package she has 3/10 left, because 10/10 - 7/10 = 3/10.

3. Find the weight of 3/10 of the package

The whole package, 10/10, weighs 2 pounds,
so each 1/10 of package = 2lbs/10 = 0.2 lbs

Now we know we have 3/10 left, so multiply 0.2 by 3 which equals 0.6 pounds.
Victoria has 0.6 pounds of flour left.

Hope this answers your question, and May the Force Be With You!

-Jabba