David M. answered 09/25/18
Tutor
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Dave "The Math Whiz"
This is a subtraction problem.
Let x=how much farther he ran than walked
x=4-1/4
Let's change 4 into a mixed fraction with 4 as the denominator:
4=3+4/4
Put this value of 4 into our original equation.
x=4-1/4 original equation
x=(3+4/4)-1/4 substituting for 4
x=3+(4/4-1/4) rearranging grouping
x=3+(3/4) simplifying
x=3 3/4 answer