
Multiply and Divide Positive Rational Numbers
Flashcard
•
Mathematics
•
5th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a positive rational number?
Back
A positive rational number is a number that can be expressed as the quotient of two integers, where the numerator is a positive integer and the denominator is a non-zero integer.
2.
FLASHCARD QUESTION
Front
How do you multiply two fractions?
Back
To multiply two fractions, multiply the numerators together and multiply the denominators together. For example, (a/b) * (c/d) = (a*c)/(b*d).
3.
FLASHCARD QUESTION
Front
What is the process to divide fractions?
Back
To divide fractions, multiply the first fraction by the reciprocal of the second fraction. For example, (a/b) ÷ (c/d) = (a/b) * (d/c).
4.
FLASHCARD QUESTION
Front
How do you convert a mixed number to an improper fraction?
Back
To convert a mixed number to an improper fraction, multiply the whole number by the denominator, add the numerator, and place that result over the original denominator. For example, 2 1/3 = (2*3 + 1)/3 = 7/3.
5.
FLASHCARD QUESTION
Front
What is the least common multiple (LCM)?
Back
The least common multiple (LCM) of two or more numbers is the smallest number that is a multiple of each of the numbers.
6.
FLASHCARD QUESTION
Front
How do you find the greatest common factor (GCF)?
Back
The greatest common factor (GCF) of two or more numbers is the largest number that divides each of the numbers without leaving a remainder.
7.
FLASHCARD QUESTION
Front
What is the formula for finding the area of a rectangle?
Back
The area of a rectangle is found by multiplying its length by its width. Area = length × width.
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