Kip and Jordan are brothers. Their dad measures them once a year by drawing a line on a doorframe in their house.

1. Kip grew from $42\frac { 3 } { 4 }$ inches to $48\frac { 3 } { 4 }$ inches. How much did he grow last year?

• Hint (a):

  Subtracting fractions can be tricky, but here we know that

  $\frac{3}{4}-\frac{3}{4}=0$

  More Help (a):

  Be sure that you subtract Kip's height this year from Kip's height last year.
  If you get this mixed up, you will end up with a negative number!

2. Jordan was $40\frac { 1 } { 2 }$ inches and grew $5\frac { 1 } { 2 }$ inches. How tall is he now?

3. Which boy grew more last year?

   Hint (c):

   Compare your answer to part (a) and the information given in part (b).
   Can you tell who grew more?

   Answer (c):

   Kip grew more this year.