Dividing Mixed Numbers with Cross Cancellation

The video tutorial by Mr. J explains how to divide mixed numbers using cross cancellation. It begins with converting mixed numbers to improper fractions, followed by the keep, switch, flip method for dividing fractions. The tutorial highlights the use of cross cancellation to simplify fractions before multiplication, making calculations easier. The final section covers converting the result back to a mixed number and provides additional tips on when cross cancellation can be applied.

What is the first step in dividing mixed numbers?

• Subtract the fractions

• Multiply the fractions

• Add the fractions

• Convert to improper fractions

Tags

CCSS.6.NS.A.1

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

• Subtract the numerator from the denominator

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

• Add the numerator and denominator

• Divide the numerator by the denominator

What is the improper fraction form of eight and four-sevenths?

• 60/8

• 64/7

• 60/7

• 56/7

What does the 'keep' step in the keep-switch-flip method refer to?

• Keep the fractions as mixed numbers

• Keep the operation as division

• Keep the first fraction

• Keep the second fraction

Tags

CCSS.6.NS.A.1

What is the reciprocal of 12/5?

• 5/7

• 12/5

• 5/12

• 1/12

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2A

What is cross cancellation?

• A way to convert mixed numbers to improper fractions

• A method to subtract fractions

• A way to simplify fractions before multiplying

• A method to add fractions

Tags

CCSS.5.NF.B.6

What is the greatest common factor of 60 and 12?

• 7

• 6

• 12

• 5

What is the result of multiplying 5 by 5?

• 25

• 20

• 30

• 10

Tags

CCSS.3.OA.A.1

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

• Subtract the numerator from the denominator

• Add the numerator and the denominator

• Multiply the numerator by the denominator

• Divide the numerator by the denominator and use the quotient as the whole number and the remainder as the numerator

What is the final mixed number form of 25/7?

• 4 and 3/7

• 3 and 4/7

• 3 and 3/7

• 4 and 4/7