Download presentation
Presentation is loading. Please wait.
Published byAudra Roberts Modified over 9 years ago
1
Welcome to Math 6 Today’s topic is… Division (part 2)
2
The Connector… In our last lesson, we discussed how to divide whole numbers and decimals. In this lesson I will explain how to divide fractions by whole numbers or whole numbers by fractions.
3
When to use a fractional approach? Mr. Shin has a piece of lumber that is 11 5/8 inches wide. He plans to split the width of lumber into 3 equal pieces. How wide will each piece be?
4
OBJECTIVE: Each student will: Divide fractions by whole numbers Divide whole numbers by fractions. Divide fractions by fractions
5
Inverse means ‘opposite.’ Inverse can describe mathematic operations, as in: “Division is the Inverse of Multiplication.” “Subtraction is the Inverse of addition.”
6
Division of fractions follows the same steps as multiplication of fractions, but there is one additional step. To divide fractions, you need to invert the divisor and then multiply.
7
To invert a fraction, reverse the numerator and denominator. The special name given to an inverted fraction is reciprocal. Recall that a whole number has a understood denominator of 1.
9
Julia ate 1/2 pint of chocolate chip ice cream. Mark ate 3/4 pint of vanilla ice cream. How many times more ice cream did Mark eat?
10
ICE CREAM. Julia ate 1/2 pint of mint chocolate chip ice cream. Mark ate 3/4 pint of vanilla ice cream. How many times more ice cream did Mark eat?
11
Lane wants to cut a board into three equal pieces. The board is 5/8 feet long. How long will each piece be?
12
Laura wants to cut a board into three equal pieces. The board is 5/8 feet long. How long will each piece be?
13
Norberto has 7/8 of a pizza. The pizza will be divided equally among 6 people. How much will each person get?
14
PIZZA. Norberto has 7/8 of a pizza. The pizza will be divided equally among 6 people. How much will each person get?
15
Dividing mixed numbers First convert to an improper fraction. Then divide. Example: Julia has 3 1/2 pounds of dog food. She plans to split it equally among her 7 dogs. How much dog food will each dog receive?
16
1.Solve all equations from “Dividing Fractions A” worksheet. 2.Complete the Division with Fractions Problem Page.
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.