Question

Tolong di bantu (pakai cara)
Sederhanakan

1. 1/x - 2/x + 3/2x
2. 2/a+b - 5/a
3. x/x+y - y/x
4. a/3 - b/a+b
5. 1/2a - 1/a-1

Answer 1

1. 2/2x - 4/2x + 3/2x = 1/2x

2. 2a/a(a+b) -
5(a+b)/a(a+b) =
2a-5a-5b/a²+ab =
-3a-5b/a²+ab

3. x²/x(x+y) -
y(x+y)/x(x+y) =
x²-y(x+y)/x(x+y) =
x²-xy-y²/x²+xy

4. a(a+b)/3(a+b) -
3b/3(a+b) =
a(a+b)-3b/3(a+b) =
a²+ab-3b/3a+3b

5.1(a-1)/2a(a-1) -
2a(1)/2a(a-1) =
a-1-2a/2a(a-1) =
-1-a/2a²-2a