Challenge
The area of a triangle is 7 7/8 cm squared The base is 5 1/4 cm. What is the length?
3 cm
If you are dividing a whole number by a fraction you must first do what to the whole number?
Put a 1 underneath it to make it a fraction.
1/2 ÷ 4
1/8
What is the reciprocal of 2/3?
3/2
1 2/3 ÷ 1/5
1/3
The area of a rectangle is 17 1/2 inches squared. The base is 3 1/2 inches. What is the length?
5 inches
When dividing fractions, what do you do to the first fraction in the problem?
KEEP it the same.
What is the reciprocal of 8?
1/8
3/4 ÷ 2/5
1 7/8
3 4/5 X 1/3
19/15 or 1 4/15
What is the "flip" called?
Reciprocal
When dividing fractions, what do you do to the division sign?
Change it to multiplication.
1/3 ÷ 4
1/12
4/7 ÷ 2/3
6/7
1/6 ÷ 3 2/3
1/22
What is the volume, in cubic inches, of one cube with an edge length of 1/3 inch?
1/27 inches cubed
When dividing fractions, what must you do to the second fraction in the problem?
Find its reciprocal!
2 x 1/4
2/4 or 1/2
5/9 ÷ 1/2
1 1/9
What is the name of the most played Halloween song of all time?
Thriller
What is the volume in cubic inches, of a rectangular prism with L= 3 in. W = 1 in. H= 1 1/3 in.
4 inches cubed
What is the 3-word rule used to remember how to divide fractions? MY WORDS!
Keep, Change, Reciprocal
Keep the first fraction
Change division to multiplication
Reciprocal of the second fraction
1/4 ÷ 2
1/8
3/4 divided by 3/4
1
5 1/4 ÷ 1/4
21