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Estimating fractions
Multiplying fractions
multiplying fractions times whole numbers
multiplying fractions with models
100

Estimate: 1/3 x 5/6

Its going to be less than 1.

100

1/3 x 1/2

1/5

100

1/6 x 5

5/6

100

1/3 x 2. Use a model

2/3 in a model

200

Estimate: 9/9 x 4/6

It would be equal to one of the factors.

200

2/6 x 4/5

8/30

200

1/4 x 6

6/4 or 1 2/4

200

1/6 x 2. Use model

2/6 in a model

300

Estimate: 9/18 x 7/6

It would be greater than 1

300

6/10 x 4/5

24/50

300

2/3 x 2

4/3 or 1 1/3

300

2/4 x 2 use model

4/4 or 1 in a models

400

Estimate: 6/8 x 9/4

It would be greater than 1

400

7/9 x 2/12

14/108

400

3/4 x 4

12/4 or 3

400

2/5 x 4 use a model

8/5 or 1 3/5

500

Estimate: 6/15 x 6/7

It would be less than 1

500

9/10 x 6/20

54/200

500

6 x 8/9

48/9 or 5 3/9

500

4/6 x 4 use a model

8/6 or 1 2/6