Jeremy walked 6/8 of the way to school and ran the rest of the way. What fraction in simplest form shows the part of the way that Jeremy walked?

To simplest form of a fraction you find the lowest common factor, usually I use this trick: if both numbers are even I keep dividing by 2 to the numerator and denominator till I can't anymore

In this case:

6 divided by 2 = 3

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8 divided by 2 = 4

now I can't simplify an further because 3 isn't an even number, therefore its the simplest form

remember = my trick only works if both number are even, if not you'll have to find the lowest common factor and divide them by that