Divide 33 into 2 groups so the ratio can be 4 to 7

4:7 ... added = 11

4/11 (33) = 132/11 = 12

7/11 (33) = 231/11 = 21

ur 2 groups are 12:21

To do this task the best way is always add both "sides" of ratio and divide whole group by this sum. sum=4+7=1133:11=3Now we know how much is 1 and we can multiply by 4 and by 7 to find the answer. 3*4=12 - first group3*7=21 - second group

Your result is ok.