Quantcast To change a whole number to an improper fraction - Basic Mathematics

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FRAME 2-36.
Solution to
Frame 2-35.
To change a whole number to an improper fraction:
2 1/3
= 7/3
(1) Choose the desired denominator,
1 1/10
= 11/10
(2) Multiply the whole number by the denominator, and
4 2/5
= 22/5
(3) Place the product over the denominator.
For example:
3 = how may fifths?
3 = 3x5
15
=
5
5
Fill in the following:
2 =
__
2
7 =
__
5
10 =
__
3
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FRAME 2-37.
Solution to
Frame 2-36.
Remember " (a + b) (c + d) = ac + ad + bc + bd" from Frame 1-35? This
general formula can be applied to multiplying mixed numbers. For
2
=
4/2
example, in the problem 2 1/2 x 3 1/3, let a = 2, b = 1/2, c = 3, and d =
1/3.
7
=
35/5
10
= 30/3
Solve the problem using the algebraic formula, then solve it using
improper fractions. Your answers should be the same.
___________________________________________________________________
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MD0900
2-16



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