6.3E Math Review

Front

What is the process to divide a fraction by a whole number?

Back

To divide a fraction by a whole number, multiply the denominator of the fraction by the whole number. For example, to divide 3/4 by 2, calculate 3/(4*2) = 3/8.

Front

How do you find a fraction of a whole number?

Back

To find a fraction of a whole number, multiply the whole number by the numerator of the fraction and then divide by the denominator. For example, to find 3/4 of 60, calculate (60 * 3) / 4 = 45.

Front

What is the formula to calculate the total cost of an item based on its weight and price per pound?

Back

Total Cost = Weight (in pounds) x Price per pound. For example, if lunch meat costs $1.58 per pound and you buy 2.75 pounds, the total cost is 2.75 x 1.58 = $4.35.

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 over the original denominator. For example, 3 1/2 = (3*2 + 1)/2 = 7/2.

Front

What is the method to calculate how many equal parts can be made from a whole?

Back

To find how many equal parts can be made from a whole, divide the whole by the size of each part. For example, if you have 15 feet of fabric and cut it into 1/5 foot sections, calculate 15 / (1/5) = 15 * 5 = 75 sections.

Front

What does it mean to share a quantity equally among a group?

Back

To share a quantity equally among a group means to divide the total amount by the number of people in the group. For example, if Jennifer has 3 1/2 cups of jelly beans and shares with 7 friends, each person gets 3.5 / 7 = 0.5 cups.

Front

How do you calculate a fraction of a total number?

Back

To calculate a fraction of a total number, multiply the total number by the numerator of the fraction and divide by the denominator. For example, to find 1/3 of 84, calculate (84 * 1) / 3 = 28.

Front

What is the relationship between fractions and division?

Back

Fractions represent division. For example, the fraction 3/4 means 3 divided by 4. This relationship helps in understanding how to manipulate fractions in calculations.

Front

How do you determine the number of items shared if a fraction is given?

Back

To determine the number of items shared, multiply the total number of items by the fraction. For example, if Susan shares 3/4 of 60 cookies, calculate 60 * (3/4) = 45 cookies.

Front

What is the significance of the denominator in a fraction?

Back

The denominator indicates how many equal parts the whole is divided into. For example, in the fraction 3/4, the denominator 4 means the whole is divided into 4 equal parts.