Question

How can i evaluate this expression 3/2-4/7

Answer 1

`simple\ method:\\\\(a)/(b)-(c)/(d)=(ad-bc)/(bd)\\==================\\(3)/(2)-(4)/(7)=(3\cdot7-2\cdot4)/(2\cdot7)=(21-8)/(14)=\boxed{(13)/(14)}`

Answer 2

`(3)/(2) - (4)/(7)`

`= (3)/(2) + (-4)/(7)`

`= (21)/(14) + (-8)/(14)`

`= (21+-8)/(14)`

`= (13)/(14)`
Decimal: 0.928571