Converting and Multiplying Fractions

In this video, Mr. J explains how to multiply and divide mixed numbers. The process involves converting mixed numbers to improper fractions. For multiplication, you multiply the numerators and denominators directly. For division, you use the 'keep, switch, flip' method, which involves keeping the first fraction, switching the division sign to multiplication, and flipping the second fraction to its reciprocal. The video provides step-by-step examples for both operations, ensuring clarity in the conversion and calculation processes.

What is the first step in multiplying mixed numbers?

• Add the whole numbers

• Convert to improper fractions

• Multiply the whole numbers

• Divide the fractions

How do you convert a mixed number to an improper fraction?

• Divide the whole number by the denominator

• Add the numerator and denominator

• Multiply the whole number by the denominator and add the numerator

• Subtract the numerator from the denominator

Tags

CCSS.5.NF.B.6

What is the result of multiplying 14/3 by 11/5?

• 11/14

• 154/15

• 15/154

• 154/5

How do you convert an improper fraction to a mixed number?

• Multiply the numerator by the denominator

• Divide the numerator by the denominator

• Add the numerator and denominator

• Subtract the denominator from the numerator

Tags

CCSS.6.NS.A.1

What is the first step in dividing mixed numbers?

• Convert to improper fractions

• Add the fractions

• Multiply the fractions

• Subtract the fractions

Tags

CCSS.7.NS.A.2C

What does the 'keep-switch-flip' method involve?

• Keeping the first fraction, switching the operation to multiplication, and flipping the second fraction

• Keeping the first fraction, switching the operation to division, and flipping the second fraction

• Keeping the first fraction, switching the operation to subtraction, and flipping the second fraction

• Keeping the first fraction, switching the operation to addition, and flipping the second fraction

Tags

CCSS.7.NS.A.2C

What is the reciprocal of 27/7?

• 1/7

• 1/27

• 27/7

• 7/27

Tags

CCSS.6.NS.A.1

What is the result of dividing 17/2 by 27/7?

• 119/54

• 54/119

• 17/27

• 27/17

How do you simplify the fraction 11/54?

• Multiply both numerator and denominator by 2

• Divide both numerator and denominator by 1

• Divide both numerator and denominator by 11

• Divide both numerator and denominator by 54

Tags

CCSS.6.NS.A.1

What is the final mixed number result of dividing 17/2 by 27/7?

• 2 and 11/54

• 1 and 11/54

• 3 and 11/54

• 2 and 54/11

Tags

CCSS.6.NS.A.1