Finding fractions

This task is about how to find fractional amounts of a total.
a)
A piece of timber was 36 cm long. 
If 1414 was cut off, what would the new length be?

Show your working.

 

 

Answer: __________cm

b)
James started with 32 marbles and lost 3838 of them. 
How many did he lose?  

Show your working.

 

 

Answer: __________

c)
Aroha won 7979 of the 72 tennis matches that she played. 
How many matches did she win?  

Show your working.

 

 

Answer: __________