What is four thirds -2/5

It is 0.93333333333

Step-by-step explanation:

14/15

Step-by-step explanation:

You need to find the Least Common Multiple for the denominator to add. LCM of 3 and 5 would be 15. You multiply 5 to 3 to get 15 and 3 to 5 to get 15. You would multiply the numerators by the same number. 4x5=20 and 2x3=6. 20/15-6/15=14/15

The symbol ∪ is called the union. You find the union between two sets by adding all the members in each of the sets. If both of the sets have the same member, only add it once. As sets can't have duplicate members.

A ∪ B = {1,2,3,4,6}

The intersection between two sets is all the members that belong in both A and B.

A ∩ B = {2}