Question

was wondering if someone can help me learn how to cross multiply, I'm trying to teach my little brother but it's been so long. Can you explain how you got your answer, what you did if possible!! thank you ​

Answer 1

You can multiply everything like you would for whole numbers, and then you can count the number of decimal places in total for example as we can see in 1.33 there are 2 decimal place values and in 5.5 it's 1 decimal place (BASICALLY IT'S THE number OF NUMBERS AFTER THE DECIMAL POINT)
Once you are done multiplying you move your decimal point 3 times in NUMBER 1.
For the rest you do the same thing if you need any further help, let me know!