Answer:
4 [tex]\frac{5}{8}[/tex] km
Step-by-step explanation:
To find how much farther Hallie biked after lunch compared to the amount she biked before lunch, we can subtract the amounts:
6 [tex]\frac{1}{4}-1\frac{5}{8}[/tex]
However, we can only subtract fractions that have the same denominator, so we need to convert [tex]\frac{1}{4}[/tex] to a fraction with a denominator of 8:
[tex]\frac{1}{4}=\frac{2}{8}[/tex]
Now, we can't subtract 2 from 8, so we need to 'borrow' from the 6 to make the fraction larger:
[tex]6\frac{2}{8}=5\frac{10}{8}[/tex]
Now subtract: [tex]5\frac{10}{8}-1\frac{5}{8}=4\frac{5}{8}[/tex]