Adding Fractions
1/4 + 3/4
1
8/10 -5/10
3/10
2/5 times 1/6
1/15
1/4 divide 2/3
3/8
What is the rule for adding positive and negative numbers?
Same signs add different signs subtract
1/6 + 2/6
1/2
12/20 - 10/20
1/10
1 1/3 times 3/4
1
2/7 divide 4/10
5/7
What is the overall rule for Subtracting positive and negative numbers?
Add the opposite
3/5 + 1/2
1 1/10
5/6 - 1/4
7/12
-4/5 times 1/10
-2/25
-5/12 divide 1/7
-2 11/12
What is the rule for multiplying and dividing positive and negative numbers?
same signs positive, different signs negative
-7/10 + -1/7
-59/70
-1/4 - 1/3
-7/12
-8/3 times -5/16
5/6
3 1/8 divide -1 1/4
-2 1/2
Is the answer to the following equation positive or negative?
-1/2 times -2/3 times -1/5
negative
-8/11 + 1/3
-13/33
-3/7 - (-2/5)
-1/35
-2 4/5 times 3 1/7
-8 4/5
-5 8/11 divide -2 9/12
2 10/121
What is the 2nd step for solving the equation below?
1 1/2 times -2 2/5
cross cancel