How do you determine which fraction is greater 3/7 or 4/9?
Divide one into the other. The resulting value will indicate which is the greater:
A quick method is to cross multiply the fractions.
However, this only works if you multiply in the same direction every time.
An alternative method is to get rid of the denominators
Worst method - use a calculator!
Use a calculator to change them into decimals, then compare.
You can also use a calculator to subtract the two fractions.
If you get a positive answer, then the first fraction was bigger.
If you get a negative answer then the first fraction was smaller.