Comparing fractions with different numerators and denominators

The first instance of  is under the 4th Grade Math Mission. This exercise compares fractions in which the denominators are not the same and they are not often multiples of each other so that comparing is a little more complicated.

Types of Problems
There is one type of problem in this exercise:


 * 1) Compare the fractions: This problem gives two fractions. The student is asked to compare them using either the less than, greater than, or equals symbols.Comfra2.png

Strategies
This exercise is easy to get accuracy badges because of many resources that can be used. The speed badges are also easy if you use the correct techniques to go as fast as possible.


 * 1) If accuracy is your number one concern, a calculator can be used to make decimals and comparing decimals is generally easier.
 * 2) If speed is your number one concern, you can use the fact that $$ a/b = c/d \iff ad=bc $$