Operations w/ Fractions
1/2 + 3/4 =
5/4 or 1 1/4
-9 + (-5)
-14
A bag contains 25 balloons: 15 red, 3 yellow, and 7 orange.
What is the theoretical probability of choosing a yellow balloon?
3/25
Distribute the equation: 5(4x+1)
20x + 5
Find two factors of 76.
1, 2, 4, 19, 38 (2 of them)
2 - 2/5 =
8/5 or 1 3/5
-9+9+9-9+9+-9
0
A bag contains 25 balloons: 15 red, 3 yellow, and 7 orange.
What is the probability of not choosing a red balloon?
10/25
Distribute the equation: 2(2-1x)
4-2x or -2x+4
Find all the factors of 171.
1, 3, 57, 171
3/8 X 6/7
18/56 or 9/28
What is a variable?
any letter
A bag contains 25 balloons: 15 red, 3 yellow, and 7 orange.
What is the probability of getting a yellow or an orange balloon?
10/25
-4x(10-13x)
2x
Find the least common multiple of 35 and 175.
175
1 2/3 - 5/6 =
5/6
15(4)
60
A bag contains 25 balloons: 15 red, 3 yellow, and 7 orange.
The number of balloons of each color is doubled. What happens to the probability of choosing a red balloon?
The probability remains the same.
9(7x-4)+ 6(6-7y)
63x-36+36-42y= 63x -4y
Find the least common factor of 100 and 10.
10
5/7 / 2 1/3 =
15/49
-12(4)+3
-45
A bag contains 25 balloons: 15 red, 3 yellow, and 7 orange.
What is the probability of getting a red or yellow balloon?
18/ 25
-5z + 4(2y-1) + 3p(4+10) + 8(2d) + (-1)(4y-12)
Don't forget to combine like terms
-5z+8y-4+12p+30p+16d-4y+12= -5z+4y+42z+16d+8
Find the greatest common factors of 370, 74, and 148.
74