Topic 1 review (Positive Rational Numbers)

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.

Front

How do you find the number of runners in a relay race if each runner runs a fraction of the total distance?

Back

To find the number of runners, divide the total distance by the distance each runner runs. For example, in a 4-mile relay where each runner runs 2/5 of a mile, the number of runners is 4 ÷ (2/5) = 4 x (5/2) = 10.

Front

What is the formula for calculating the area of a rectangle?

Back

The area of a rectangle is calculated using the formula: Area = Length × Width.

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 the result over the original denominator.

Front

What is the area of a rectangle with length 4 4/5 inches and width 6 1/4 inches?

Back

The area is 30 square inches.

Front

How do you estimate the product of two decimal numbers?

Back

To estimate the product, round each decimal to the nearest whole number and then multiply the rounded numbers.

Front

What is the quotient of two fractions?

Back

The quotient of two fractions is found by multiplying the first fraction by the reciprocal of the second fraction.

Front

What is the result of dividing 3/4 by 1/8?

Back

The result is 6.

Front

How do you divide a mixed number by a fraction?

Back

Convert the mixed number to an improper fraction, then multiply by the reciprocal of the fraction.

Front

What is the quotient of 2 1/3 divided by 1 1/3?

Back

The quotient is 1 3/4.