Find the Reciprocal
You have 10 basketballs that you want to share equally among 5 students. Draw a picture to represent how you will divide the basketballs evenly.
5 groups of 2 is what you should have drawn!
What is our saying to remember how to divide fractions?
KEEP, MULTIPLY, FLIP
So we KEEP the first fraction, we change our division to MULTIPLICATION, and then we FLIP our divisor/second fraction to make the reciprocal.
You are going to a birthday party. You order 6 pints of ice cream for the party. If you serve 3/4 of a pint to each guest, how many guests can be served?
6 divided by 3/4 is equal to 8
(5/12)÷ (5/18)
3/2 OR 1 1/2
You have 5 and 2/5 Snickers that you want to share among 9 students. DRAW A PICTURE (but you don't have to solve!) to represent how you could divide your Snickers bars up equally among the 9 students.
You should have a drawing where you divide 5 into fifths which equals 25 plus your 2 from 2/5 which gives you 27. 27/9 is 3! Each person will get 3 bits of Snickers!
Dividing any number by a fraction is THE SAME AS?....(doing what other math action??)
Multiplying by the reciprocal.
You have 3 and 2/3 cups of coffee that you want to share among 11 students. DRAW A PICTURE (but you don't have to solve!) to represent how you could divide your coffee up equally among the 11 students.
You should have a drawing where you divide 3 into thirds which equals 9 plus your 2 from 2/3 which gives you 11. 11/11 is 1 so each person gets 1/3!
If you were to write out this expression using only words, what would you write? 3/5 ÷ 6/7 You don't have to solve! Just write out what it's asking for!
How many six-sevenths can we fit into three-fifths?
Mr. Jeremy has 4 and 2/3 yards of material for a new feather boa. Each boa that he makes requires 1 and 1/6 yards of material. How many new boas will he be able to make with this material?
4 new boas
(1/3)÷(1/8)
8/3 OR 2 2/3
What is the reciprocal of 18/27?
27/18
There are 2 and 4/5 tons of bricks in the supply store. How can we divide these bricks up evenly amongst 7 people? DRAW A PICTURE!
You should have a drawing where you divide 2 into fifths which equals 10 plus your 4 from 4/5 which gives you 14. 14/7 is 2!
If you were to write out this expression using only words, what would you write? 3/10 ÷ 1/100
How many one one-hundredths can we fit into three-tenths?
16/21 ÷ 20/28
16/15 OR 1 1/15
You have a sheet of paper that is 8 and 1/3 inches long. How can you divide this into 5 equal columns? DRAW A PICTURE!!!
You should have a drawing where you divide 8 into thirds which equals 24 plus your 1 from 1/3 which gives you 25. 25/5 is 5!
What key words or phrases can we look for in a word problem dealing with dividing fractions?
Any of the following: "How many pieces can we fit into?" "In" "Divided equally..." If you list, "of," you will automatically lose this question!
How many four-sevenths can I fit into thirty-two thirty-fifths?
eight-fifths OR 8/5 OR 1 3/5