alex 7 math unit 2 test

Question 1

fractions

Answer 1

equal parts of a whole and of a set

Question 2

numerator

Answer 2

how many parts are counted

Question 3

denominator

Answer 3

how many equal parts in a whole

Question 4

mixed number

Answer 4

a mixture of a whole number and a fraction
example
1 3/8

Question 5

improper fraction

Answer 5

the numerator in a fraction is larger then the denominator
example
9/5

Question 6

equivalent fractions

Answer 6

represent the same amount

example 1/4=2/8

Question 7

unit fractions

Answer 7

has 1 in the numerator
example
1/7

Question 8

repeating decimal

Answer 8

repeating decimal
example
4.888888888888888888888888888888888888888888888888888888888888888888888

Question 9

terminating decimal

Answer 9

decimal that does not go on forever
example
4.94852

Question 10

of

Answer 10

x

Question 11

equivalent

Answer 11

equal value
example
1=1

Question 12

LCD

Answer 12

lowest common denominator(multiple)

Question 13

GCF

Answer 13

greatest common factor

Question 14

lowest terms

Answer 14

the lowest possible

Question 15

unit

Answer 15

the ones place

Question 16

difference between a mixed number and improper fraction

Answer 16

showed in different ways

Question 17

how to know if 2 fractions r equivalent

Answer 17

divide or x

Question 18

how to add fractions

Answer 18

change in to improper fraction
reduce
find lcd 
multiply numbers to get lcd as denominator
add
reduce
turn into mixed number
example
1   4/5+8/10
9/5+8/10
9/5+4/5
13/5
2    3/5

Question 19

how to subtract fractions

Answer 19

change into improper fraction
reduce
find lcd 
multiply numbers to get lcd as denominator
subtract
reduce
turn into mixed number
example
9/2-8/5
LCD=10
9/2x5/5-8/5x2/2
45/10-16/10
29/10
2    9/10

Question 20

how to change decimal to fraction

Answer 20

example
0.462= fraction
462/1000
231/500

Question 21

how to change fraction to decimal

Answer 21

example
4/20=decimal
2/10
1/5
2/10
0.2

Question 22

mixed number = decimal

Answer 22

example
2 17/100
217/100
2.17

Question 23

decimal=mixed number

Answer 23

example
6.39
639/100
6.39

Question 24

change decimal to fraction then compare

Answer 24

example
0.8 compared to 9/30
0.8 compared to 3/10
8/10 compared to 3/10
8/10 is bigger then 3/10

Question 25

change fraction to decimal the compare

Answer 25

example
6/30 compared to 6.5
2/10 compared to 6.5
1/5 compared to 6.5
2/10 compared to 6.5
0.2 compared to 6.5
0.2 is smaller then 6.5

Question 26

multiply fractions

Answer 26

straight across
example
4/6x3/9
2/3x1/3
2/9

Question 27

divide fractions

Answer 27

flip the second number
then multiply
example
2/8 divided by 9/3
1/4 divided by 9/3
1/4 divided by 3/1
1/4 x 1/3
1/12