80 terms

Students are asked to find the missing term of the following equations. They accomplish this based upon their knowledge of equivalent fractions.
Example 4/5 = x/20 x=16 Since I can multiply the denominator 5 in the first fraction by 4 to get to 20. Whatever I do to the denominator I must do to the numerator, then I know 4 x 4 = 16. Therefore, x must be equal to 16.

6

2/3 = x/9

4

1/2 = x/8

5

1/3 = x/15

2

1/2 = x/4

3

1/2 = x/6

5

1/2 = x/10

6

1/2 = x/12

7

1/2 = x/14

8

1/2 = x/16

9

1/2 = x/18

2

1/3 = x/6

3

1/3 = x/9

4

1/3 = x/12

6

1/3 = x/18

7

1/3 = x/21

8

1/3 = x/24

9

1/3 = x/27

2

1/4 = x/8

3

1/4 = x/12

4

1/4 = x/16

5

1/4 = x/20

6

1/4 = x/24

7

1/4 = x/28

8

1/4 = x/32

9

1/4 = x/36

2

1/5 = x/10

3

1/5 = x/15

4

1/5 = x/20

5

1/5 = x/25

6

1/5 = x/30

7

1/5 = x/35

8

1/5 = x/40

9

1/5 = x/45

4

2/3 = x/6

8

2/3 = x/12

10

2/3 = x/15

12

2/3 = x/18

14

2/3 = x/21

16

2/3 = x/24

18

2/3 = x/27

6

3/4 = x/8

9

3/4 = x/12

12

3/4 = x/16

15

3/4 = x/20

18

3/4 = x/24

21

3/4 = x/28

24

3/4 = x/32

27

3/4 = x/36

4

2/5 = x/10

6

2/5 = x/15

8

2/5 = x/20

10

2/5 = x/25

12

2/5 = x/30

14

2/5 = x/35

16

2/5 = x/40

18

2/5 = x/45

6

3/8 = x/16

9

3/8 = x/24

12

3/8 = x/32

15

3/8 = x/40

18

3/8 = x/48

21

3/8 = x/56

24

3/8 = x/64

27

3/8 = x/72

2

1/10 = x/20

3

1/10 = x/30

4

1/10 = x/40

5

1/10 = x/50

6

1/10 = x/60

7

1/10 = x/70

8

1/10 = x/80

9

1/10 = x/90

4

2/9 = x/18

6

2/9 = x/27

8

2/9 = x/36

10

2/9 = x/45

12

2/9 = x/54

14

2/9 = x/63

16

2/9 = x/72

20

2/9 = x/80