Math

Adding fractions

100

3/4+7/8=

3/4+7/8=13/8

200

6/7+2/5

6/7+2/5=44/35

300

7/8+4/12

7/8+4/12=30/24

400

6/8+4/5+9/10=

6/8+4/5+9/10=98/40

500

-1/2+5/8+3/4+7/1

-1/2+5/8+3/4+7/1=90/8

Dividing fractions

100

5/8;7/9

5/8;7/9=45/56

200

1/5;6/7

1/5;6/7=7/30

300

6/9;10/12

6/9;10/12=72/90

400

7/8;15/20

7/8;15/20=140/114

500

12/34;13/14

12/34;13/14=168/442

Evaluating functions

100

H(x)=17+x/6

H(-18)=

H(-18)=14

200

F(x)=5x-3

F(5)

F(5)=22

300

H(t)=50 - t/5

H(35)

H(35)=43

400

G(r)=-5r+13

G(3)

G(3)=-2

500

F(t)=2t-3

F(7)

F(7)=11

Distributive property

100

-3(2x+7)

-6x-21

200

2/3(6x+9)

4x+6

300

2/3(6x-9)

4x-6

400

7(5+3)

35+21

500

3/8(32x–40)

12x-15

Rules

100

What do you do first while adding fractions 

Find common denominator 

200

What do first while multiplying fractions?

Multiply the 2 numerators

300

Whaat do you do first while dividing fractions?

Change the division sign to a multiplication sign

400

What do you do first in the distributive property?

Multiply the number on the outside of the parentheses to the number on the inside

500

What do you do first while evaluating a function?

Substitute the numbers in for the variables