Chapter 4
9 ÷ 1/2 =
18
Reciprocal of 12/19
19/12
2/3 x 1_3/5 =
1_1/15
3_3/8 ÷ 2_1/4 =
1_1/2
1 ÷ 3/4 =
1_1/3
4_1/2 ÷ 2_7/10 =
1_2/3
2_1/10 ÷ 1_1/5 =
1_3/4
1/6 x 11 =
1_5/6
Mutliply: 15 x 1/8 =
1_7/8
Mrs. Young calls reciprocals...
"flippy floppy fractions"
(round each to zero, half, or one) 7/8 x 3/5 is about...
1 x 1/2 = 1/2
5/6 x 9/15 =
1/2
If the area of a closet is 9/20 square yards, and the width of the closet is 9/10 yards, what is the length of the closet? (Area = length x width)
1/2
1/7 x 1/7 =
1/49
Simplify 15/75
1/5
Mutliply: 2/9 x 1/2 =
1/9
8_1/5 x 1_1/4 =
10_1/4
Reciprocal of 6/11
11/6
10 ÷ 8/9 =
11_1/4
1/5 x 3 1/3 =
2/3
2/3 x 3_1/2 =
2_1/3
1_15/16 ÷ 7/8 =
2_3/14
9 x 1/3 =
3
What is the volume of a box that is 5 1/2 inches long, 3 1/2 inches wide, and 1/6 of an inch tall?
3 1/18
Reciprocal of 2/3
3/2
Simplify 75/125
3/5
Multiply: 1/8 x 5/9 =
5/72
How many glasses of lemonade can I pour if I have 5 Liters total and each cup fits 1/6 of a Liter?
30
What is the area of a yard that is 8 3/4 yards long and 4 1/5 yards wide?
36_3/4
1_3/8 x 2_1/2 =
3_7/16
1_1/9 x 3_2/5 =
3_7/9
3 ÷ 5/8 =
4 4/5
2 x 2/5 =
4/5
Simplify 40/90
4/9
Estimate (by rounding to nearest wholes): 3 7/8 x 10 1/10 is about...
40
Reciprocal of 90/45
45/90
Estimate: 1/3 of 16 is about... (change 16 to a friendlier number first)
5
Multiply: 1/2 x 5/7 =
5/14
5 /6 x 1/3 =
5/18
1/4 x 5/6 =
5/24
Reciprocal of 4/5
5/4
4_2/3 x 1_1/8 =
5_1/4
4 ÷ 7/9 =
5_1/7
4_3/4 ÷ 7/8 =
5_3/7
7_1/2 ÷ 1_1/4 =
6
Estimate: 3/8 x 17 is about... (change 17 to a friendlier number first)
6
2 ÷ 3_2/3 =
6/11
4 ÷ 7/12 =
6_6/7
3 ÷ 2/5 =
7_1/2
10 ÷ 1_1/4 =
8
2 ÷ 1/4 =
8
Multiply: 2/3 x 12 =
8
Karen ate 3/4 of the cake at the party (what a jerk). If there were 12 slices of cake total, how many did Karen eeat?
9
1_1/5 x 3/4 =
9/10
Reciprocal of 8/9
9/8
The best book series in the world is
Harry Potter
reciprocal
a fraction inverted (flipped upside down)
improper fraction
a fraction whose numerator is larger than the denominator
mixed number
a number made up of a whole number and a fraction
Mrs. Young's favorite color is
blue
When multiplying something by a unit fraction to convert units, you put the units you started with in the...
denominator
This chapter focuses on multiplication and division of...
fractions
The three steps to start a fraction division problem are...
keep, change, flip
When multiplying something by a unit fraction to convert units, you put the units you want to convert to in the...
numerator
Our school mascot is
the Dragons
quotient
the answer to a division problem
product
the answer to a multiplication problem