Learn Math Part 8
Review: 6/8 divide by 3/7
6/8x7/3 42/24
2 1/8 + 4/8
2 5/8
1 5/10 - 6/10
9/10
37/5
7 2/5
2/4x2
2x2/4x1=4/4 or 1
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
2 5/8 + 1 4/8
4 1/8
3 3/10 - 1 4/10
1 9/10
24/12
2
5/10x3
5x3/10x1=15/10
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
1/2+1/4
3/4
6/10-2/5
1/5
25/10
2 5/10
4/5x4
4x4/5x1=16/5
example: 21/5
1. it sample convert to mixed numbers 21/5=4 1/5
16/4
4
4/14+3/7
5/7
2/3-1/6
3/6
17/8
2 1/8
3/12x6
3x6/12x1=18/12
1. 2 is same as 2/1 3/8x2/1=6/8 or 3/4
3/4x5
3/4x5/1=15/4
6/12+4/6
1 1/6
8/14-4/7
0
1 26/5
6 1/5
25/100x2
25x2/100x1=50/100