Question

Money off coupons have been circulated to 300 households. Only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. What fraction of the coupons were unused ?

Answer 1

150

Explanation:

So, 300 divided by 2/5 = 750.

When you simplify:

750 - 300 = 450 (NOT DONE YET!)

450 - 300 = 150

150 is the most simplified answer.\

Answer 2

if 2/5 were used wouldn't it make sense that 3/5 were unused