Question

James was traveling a journey of 420 km his car broke down after 280 km what fraction of his journey did he still have to travel

Answer 1

`(1)/(3)` or
`(140)/(420)`

Explanation:

put all your numbers over 420 to make them look like fractions:

`(420)/(420)      </p><p>(280)/(420)`

subtract as normal and simplify if necessary:
`(420)/(420) -(280)/(420) =(140)/(420)  \\      or              (1)/(3)`