Question

Please help
No idea how to do

Answer 1

Do 3/4 x 3 = 9/12

Do 1/6 x 2 = 2/12

Then do 9/12 - 2/12 = 7/12

Next you do 7/12 + 9/12 = 16/12

Then simplify. 1 4/12

Simplify again. 1 1/3

Answer 2

see explanation

Explanation:

He cycles
`(3)/(4)` Km and jogs
`(3)/(4)` -
`(1)/(6)`

Adding the 2 together gives the total he cycled/ jogged

`(3)/(4)` +
`(3)/(4)` -
`(1)/(6)`

We require the denominators to be common before adding/ subtracting

The lowest common denominator of 4 and 6 is 12, hence

=
`(9)/(12)` +
`(9)/(12)` -
`(2)/(12)`

=
`(9+9-2)/(12)`

=
`(16)/(12)` =
`(4)/(3)` = 1
`(1)/(3)` Km