Make denominator same first.
1/2 - 1/6
3/6 - 1/6
Now subtract numerators
(3-1) / 6
2/6
Now simplify
1/3
Final answer: 1/3
The answer is one hour. 360-270=90 90 is a fourth of 360. 45 minutes is 3/4 of an hour so yeah
3x(-5)=(-5)3x is an example of the Commutative Property of Multiplication. With this property, it does not matter which order they are multiplied in.
Hope this helps! :)