Question

To decorate the cake, Sara uses 4/9 of a tube of icing around the edge of the cake and 2/9 of the tub to write the birthday girls name. What fraction of icing is left in the tube?Write the answer in lowest terms.

Answer 1

total-used=left
total=9/9
used=4/9+2/9=6/9

total-used=9/9-6/9=3/9=1/3

answer is 1/3 left