221k views
1 vote
Barry bought 21 stamps from a hobby shop. he gave 3/7 of them to his sister, how many stamps did he have left?

User Jziwenchen
by
8.4k points

1 Answer

2 votes
he gave away 9 (20 x (3/7) =9) so 21-9=12
User Denys Pyshniuk
by
8.5k points