Mixed Numbers in Applications
Key Questions
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When multiplying mixed numbers they have to be either converted to improper fractions or to their decimal equivalent.
#2 1/2*3 3/4=5/2*15/4=75/8=9 3/8# or
#2 1/2*3 3/4=2.5*3.75=9.375=9 375/1000=9 3/8# DO NOT
-just multiply the whole number part
-just multiply the fractional parts -
Conversion of Centigrade temperature to Fahrenheit.
#F = (9/5)*C + 32# -
A mixed number is one in which there is a whole number combined with a fraction. Examples include 1 1/2, 3 2/3, and 6 4/9. They can be converted into improper fractions by multiplying the denominator of the fraction times the whole number and adding the numerator, then placing the result over the denominator.
Examples
1 1/2 = 2 x 1 +1 =3/2
3 2/3 = 3 x 3 +2 = 11/3
6 4/9 = 9 x 6 + 4 = 58/4 = 29/2
Questions
Properties of Real Numbers
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Properties of Rational Numbers
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Additive Inverses and Absolute Values
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Addition of Integers
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Addition of Rational Numbers
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Subtraction of Rational Numbers
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Multiplication of Rational Numbers
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Mixed Numbers in Applications
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Expressions and the Distributive Property
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When to Use the Distributive Property
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Division of Rational Numbers
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Applications of Reciprocals
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Square Roots and Irrational Numbers
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Order of Real Numbers
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Guess and Check, Work Backward