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2014-12-14T12:54:06+08:00

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Ivan's house is 3/4 km from school.
That means:
3/4 km x 1, 000m / 1km= 3, 000 m/ 4 (the km was cancelled)= 750 m

he had already biked 2/3 of that distance:
So:
750m x 2/3= 500m(the distance he had already biked before the tires went flat.)
What part of a kilometer had he biked? 
or
What part of a kilometer is 500m?
To find the part, we do this:
500m x 1km / 1000m (cancel m)
=500km/1000
(simplify)
=1/2 km
Therefore, the answer is 1/2 km.
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2014-12-14T14:53:35+08:00

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 \frac{3}{4}km.\ is\ the\ distance\ from\ house\ to\ school. \\ \\ Let's\ get\ the\ initial\ value\ to\ solve\ it\ at\ ease. \\ Solution; \\ \\ \frac{3}{4}km\ \cdot \frac{1000m}{1\ km}\to \frac{3000m}{4}\to\boxed{750\ m.} \\ \\ Thus,750\ m.\ is\ the\ distance\ from\ house\ to\ school. \\ \\ Let's\ get\ the\  \frac{2}{3}\ of\ it\ according\ to\ the\ given\ situation. \\ Solution; \\ \\  \frac{750m}{1}\ \cdot \frac{2}{3}\to \frac{1500m}{3}\to\boxed{500\ m.}     

Here's\ the\ final\ solution\ for\ the\ general\ question. \\ \\ Let's\ get\ the\ part\ of\ the\ kilometer. \\ Solution; \\ \\ 500\ m \ \cdot\frac{1}{1000m}\to \frac{500\ m}{1000\ m}\to\boxed{\boxed{ \frac{1}{2}\ km.}}} \\ \\ Hope\ it\ Helps:) \\ Domini
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