Multiply and Divide Fractions and Whole Numbers

Whatever I do to the denominator, I must also do to the numerator when making equivalent fractions.

• true

• false

How do you multiply fractions and whole numbers?

• Keep, Change, and Flip; simplify if needed

• Change the whole number to a fraction by dividing by 1, multiply the numerators and denominators; simplify if needed

• Change the divisor to a whole number by moving the decimal to the right. Make sure you move the dividend the same amount of places

• Multiply numerators & Multiply denominators; simplify if needed

How do you multiply fractions?

• Keep, Change, and Flip; simplify if needed

• Count how many numbers are behind each decimal and add the decimal places

• Change the divisor to a whole number by moving the decimal to the right. Make sure you move the dividend the same amount of places

• Multiply straight across and simplify if needed

How do you divide fractions with whole numbers?

• Change the whole number to a fraction by having the denominator be 1. Keep the 1st fraction, change the sign to multiply, flip the 2nd fraction; simplify if needed

• Change the whole number to a fraction by dividing by 1, multiply the numerators and denominators

• Keep, Change, and Flip; simplify if needed

• Multiply numerators & Multiply denominators; simplify if needed

When converting a mixed number into an improper fraction, you ___ the whole number by the denominator.

• add

• subtract

• multiply

• divide

When converting the mixed number, after you multiply the whole number by the denominator, you___ the product and the old numerator together to become a new numerator of the improper fraction.

• add

• subtract

• multiply

• divide

What is 6 x 1/2

• 4

• 3

• 1

• 2

What is 8 x 3/6

• 4

• 2

• 24

• 12

What is 9 x 2/6

• 1

• 2

• 3

• 4

What is 12 x 3/4

• 2

• 7

• 8

• 9