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27 Cards in this Set
- Front
- Back
- 3rd side (hint)
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State the definition of a fraction in a numeral |
A fraction is part of the whole. 1 whole pizza can be divided into different fractional parts. If you ate 1 out of the 4 slices of pizza you ate 1/4 of the pizza |
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State the definition of a fraction as a number that represents relative amounts |
Fractions on a number line, the parts adding up to the whole; how much there is of something. |
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Definition of numerator |
The number of objects |
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Definition of denominator |
The name of the objects |
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Simplest form definition |
When 2 fractions can't be reduced by the same number |
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When I'd a fraction in simplest for or lowest terms |
When no other number divides evenly into both the numerator and denominator. |
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Cross product |
This method is used to compare 2 fractions, it involves multiplying the numerator of one fraction by the denominator of another fraction & then determining if the fractions are bigger, smaller, or equivalent |
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Improper fraction |
One where the numerator is larger than or equal to the denominator |
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Mixed number |
A whole number & a fraction |
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To convert from a mixed number to an improper fraction |
Multiply your denom by whole # Add the result to the numerator the number becomes the numerator The denom is unchanged.
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To convert from an improper fraction to a mixed number |
Divide the denom into the numerator The whole # becomes the whole # in your answer The remainder becomes the numerator of the fractional part of answer Original denom stays the same
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Complex fraction |
Where the numerator is an operation of fractions where the numerator or denominator is a fraction |
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Equality of fractiona |
Use the multiplication property of 1. A fraction can be changed into another equivalent fraction by multiplying by 1 in any form by doing this the value is maintained |
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Less then and greater then for fractions |
If the denominators are the same, the higher numerator is a greater fraction. If the denims are different change the denoms into lcd & see which numerator is greater |
Shortcut: you can ONLY compare 2 fractions by cross multiplying |
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Density |
An infinite number of fractions between fractions & whole numbers on a number line. |
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Addition |
Altogether is a key word used for addition. Find a common denominator. Use the LCM # that both numbers go into. Rewrite the fractions with the common denominator Add the whole numbers and fractions. |
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Subtracting fractions |
Set up the problem with the larger whole # 1st. Find the common denominator Use the LCM for the common debominator. In order to complete the subtraction change the problem so the 1st fraction is larger.
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Key word: how much is left |
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Division key words |
Read the hint |
No key words here but division is implied because the total pounds are stated and the amount is also given. Start with the larger number Invert the 2nd number and change to a multiplication problem. Multiply the numerator Simplify |
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Multiplicative Inverse |
The recip |
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Recip |
The fraction flipped. |
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Keep it, change it, flip it |
Keep the first fraction. Change the sign. Flip the second fraction. |
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Closure property |
The set of whole numbers including 0 but doesn't include decimals or fractions. |
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Distributive |
Distribute the number outside to the parentheses multiplying the first number that was distributed add that to the second number that is distributed |
4 (8+3) = 4×8+4×3 |
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Commutative |
Changing the order of fractions doesn't change the product |
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Associative |
Changing the grouping doesn't change the product |
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Identity |
The product of 1 & any number is that number |
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Inverse |
Any # added to its opposite will equal 0 |
5 +(-5)=0 |
