Math 8

Learn Math Part 8

100

Review: 6/8 divide by 3/7

6/8x7/3 42/24

200

Example 1: 1 2/8 + 4/8

1. add the fraction first 2/8+4/8=6/8 is not above 8

2. add 1 1+6/8=1 6/8

Example 2: 1/2+ 3/8

1. find the fraction so both bottom number is the same. 1/2=4/8

2. add 4/8+3/8=7/8

1. 2 3/5 + 1/5 pick one 1 or 2 or both for extra points

2. 2/3+1/6

1. 2 4/5

2. 2/3=4/6+1/6=5/6

300

Example: 4/10-1/5

1. same thing as addition 4/10=2/5

2. subtract 2/5-1/5=1/5

6/12-2/6

6/12=3/6-2/6=1/6

400

example: 21/5

1. it sample convert to mixed numbers 21/5=4 1/5

16/4

4

500

example: 3/8x2

1. 2 is same as 2/1 3/8x2/1=6/8 or 3/4

3/4x5

3/4x5/1=15/4

Add Fractions Advanced

100

2 1/8 + 4/8

2 5/8

200

2 5/8 + 1 4/8

4 1/8

300

1/2+1/4

3/4

400

4/14+3/7

5/7

500

6/12+4/6

1 1/6

Subtract Fractions Advanced

100

1 5/10 - 6/10

9/10

200

3 3/10 - 1 4/10

1 9/10

300

6/10-2/5

1/5

400

2/3-1/6

3/6

500

8/14-4/7

0

Mixed Number Advanced

100

37/5

7 2/5

200

24/12

2

300

25/10

2 5/10

400

17/8

2 1/8

500

1 26/5

6 1/5

Multiply Fractions Intermediate

100

2/4x2

2x2/4x1=4/4 or 1

200

5/10x3

5x3/10x1=15/10

300

4/5x4

4x4/5x1=16/5

400

3/12x6

3x6/12x1=18/12

500

25/100x2

25x2/100x1=50/100