Question 737054: the length of a mirror is 12 1/2 feet, the height is 4 3/4 feet. What is the area?
I am trying to help my 5th grade daughter with her homework and I am clueless
Answer by josgarithmetic(39617)   (Show Source):
You can put this solution on YOUR website! You must at least know that if you multiply length by height, you get area. No matter if the units are whole numbers or nonwhole numbers, you multiply length by height.
If the mixed numbers measurements are bothering you, then keep everything in the same units, feet. Fifth Grade------ Do they use decimals? Maybe not. Let us stay purely with fractions, or "rational numbers". (If decimals are allowed, then the calculations are possibly easier).
 feet squared. (Because, units are feet times feet.)
You'll need to change the mixed numbers to improper fractions,
perform the simplifications FIRST,
and then perform the multiplications,
and then simplify again into mixed number.
My procedure:
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Understand that 4/4 means 1, so you divide 225 by 4 to get the whole-number part, and then the remainder is the count of 1/4 of a square foot.
 square feet.
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