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### Course: Arithmetic (all content)>Unit 5

Lesson 21: Multiplying fractions

# Finding area with fractional sides 2

Learn how to calculate the area of rectangles with fractional side lengths. Watch examples of this concept in action, and then see practice problems applying what was shown to solve similar problems.

## Want to join the conversation?

• What about if the problem had a mixed number in it and no other fraction? How would you solve it, then?
• its simple, all you have to do is multiply it normally
• What does it mean to square a meter.....?
that confuses me.
• When you "square" something by adding a ² at the end, it means you have multiplied the variable attached by itself.
So, say 2 is J. Then J² would be 2 x 2, or 4.
Hope this helps,
BIOHAZARD, The One and Only Radioactive Coder
• how does the area be similar to the fractions?
• I don't understand why the denominator changes when you multiply two fractions and when you add two fractions, the denominator stays the same. For example, 4/5*410=16/50, but when you add 4/5+4/10, it equals 8/5 or 1, 3/5 . How is it different and can you also change the denominator in division and not subtraction?
• How do I study more effectively?
• Douse anyone have a fun way to explain this I need to hear it in a way that is fun so I can keep concentrating on it?