Simplifying Fractions
Circumference
Order of Operations
Ratios
100
16/32
1/2
100

This is the distance across a circle through its center.

Diameter

100
(30/5) + 2 * 3^2 =
24
100
If there are 6 boys and 3 girls, what is the ratio of girls to boys in lowest form?
1:2
200
60/144
5/12
200

This is the formula for finding the circumference of a circle using π.

C = πd

200
(5 * 3)6 + 8/2 - 6 +3 =
91
200
Simplify: 16:4
4:1
300
4/12
1/3
300

Pi (π) is approximately equal to this rational numbers.

3.14

300
4 + 2(8^2 -4) - 20/2 =
470
300
Solve for x to make these proportional: 5/6 = x/36
x = 30
400
3/39
1/13
400

If a circle has a diameter of 8 cm, what is its circumference using π ≈ 3.14?

25.12 cm

400
5*2 + 10 -3 * 5^2 =
-55
400
Simplify: 144:60
12:5
500
180/240
3/4
500

Every circle has the same proportional relationship between these two measurements, which equals π.

What are circumference and diameter?

500
5*4 (10*2) + 6 =
406
500
Last week Bill earned $210 for a 30-hour week. What was his pay rate? What would he have earned for a 40-hour week?
Pay rate = $7/hour In a 40-hour week Bill would have earned $280.
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