Add/Subtract Fractions
(-1/2) + (3/4)
1/4
7/9 x (-2/5)
-14/45
-1.3 + -2.6
-3.9
0.3 x (-4.8)
-1.44
When adding, a negative plus a negative equals...
A negative
(5/8) - (-3/4)
11/8
-3/8 x (-8/5)
3/5
-2.074 + 1.8
-0.274
-1.6 x 2.9
-4.64
What is the rule for subtracting any integers (could be whole numbers, fractions, or decimals)?
Add the opposite or keep change flip.
(2 3/4) + (-1 1/4)
(1/2) / (-2/3)
-3/4
-11.52 - 6.3
-17.82
-29.52 / 3.6
-8.2
If I multiply 2 positive numbers and 3 negative numbers, will my answer be positive or negative?
Negative
(-3/5) - (6/10)
-6/5
(-1 1/3) / (-2 2/5)
5/9
-29.4 - (-7.21)
-22.19
-40.56 / -5.2
7.8
What do I have to have when adding and subtracting fractions?
A common denominator
(-3 1/9) - (-2 1/18)
-19/18
3 1/3
______
-2 2/9
-1 1/2
-8.106 - 0.98
-9.086
9.758
_____
0.41
23.8
What is my rule for when I am dividing fractions?
Keep, change, flip