Question

Kulwant lives $8\frac{3}{4}$km away from his school. He has covered $6\frac{7}{18}$km. How much distance has he still to go?

Answer 1

Distance between Kulwant's house and his school $=8\frac{3}{4}$km $=\frac{35}{4}$km

Distance covered by Kulwant $=6\frac{7}{18}$ km$=\frac{115}{18}$ km

Convert the above unlike fractions into like fractions by obtaining L.C.M of their denominators, we get

L.C.M of $4$ and $18$ $=36$

Distance between Kulwant's house and his school $=$ $\frac{35}{4}$km$=$$\frac{35\times 9}{4\times 9}=\frac{315}{36}$km

Distance covered by Kulwant $=$$\frac{115}{18}$km$=$$\frac{115\times 2}{18\times 2}=\frac{230}{36}$km

Distance to be covered by Kulwant $=$$(\frac{315}{36}$$-\frac{230}{36}$$)$km

$=\left(\frac{315-230}{36}\right)$km

$=\frac{85}{36}$km

Thus, distance to be covered by Kulwant $=2\frac{13}{36}$km Answer