Dividing Fractions by Dividing Across Numerators and Denominators

The video tutorial explains how to divide fractions using the concept of divisibility. It begins with an introduction to divisibility using whole numbers, followed by examples of dividing fractions using the 'divide across' strategy. The tutorial includes practical examples, such as filling water dishes and making bracelets, to illustrate the method. It also highlights the limitations of this strategy when numerators and denominators are not divisible, suggesting that other strategies may be more efficient in such cases.

What does it mean when two numbers are divisible?

• They can be divided with a remainder.

• They can be divided with no remainder.

• They are equal in value.

• They cannot be divided at all.

How many puppy water dishes can Kevin fill with 8/10 liter of water if each dish requires 2/5 liter?

• Three dishes

• Four dishes

• One dish

• Two dishes

Cameron has 5/6 yard of string. How many bracelets can she make if each requires 1/3 yard?

• Three bracelets

• One bracelet

• Two bracelets

• Two and a half bracelets

When is the divide across strategy most effective?

• When both numerators and denominators are divisible

• When numerators and denominators are not divisible

• When only denominators are divisible

• When only numerators are divisible

Why might the divide across strategy not be suitable for dividing 9/10 by 5/8?

• Because 9 is divisible by 5

• Because 10 is divisible by 8

• Because 9 and 10 are equal

• Because neither 9 nor 10 is divisible by 5 or 8