Multiplying, Dividing, Adding and Subtracting Fractions

Multiplying and Dividing

100

15/3 x 2/5 =?

2

200

1/5 / 6/7 =?

7/30

300

2 3/4 x 3/7 =?

33/28

400

1 2/3 / 3 2/7 =?

35/69

500

5 5/3 x 2 4/6

320/16

Adding and Subtracting

100

1/2 + 3/5 =?

11/10

200

6/7 - 3/6 =?

15/42

300

2 1/4 + 3/5 =?

57/20

400

1 2/3 + 2 3/6 =?

25/6

500

4 6/9 - 10 5/12 (WORTH 1000 POINTS!!)

-23/4

How to (worth 200 pts)

100

What is the first step to adding/subtracting/multiplying/dividing mixed fractions?

Convert the mixed fraction to a improper fraction

200

Describe how to divide 2 fractions

Keep the first fraction the same, change the divide to multiply, flip the last fraction around. Solve.

300

When multiplying fractions, do you need to find the least common demoninator?

no

400

How do you simplify a fraction?

Find a number that can go into the denominator AND the numerator

500

Describe how to add 2 fractions together

Find the least common denominator for the 2 fractions, whatever you multiply to the bottom you do to the top, add the denominators. Solve.