2
7
21
7 * 3 = 21
21 of them.
21/3 = 7/3 = seven one-thirds.
There are 21 thirds in 7 wholes.
21
One third is 21/3 = 7 So two thirds of 21 = 7 x 2 = 14
21
22. 7 1/3 = 22/3 there are 3 thirds in every 1. so 3 multiplied by 7 = 21 plus the final third, 22. What kind of question is this? There is a reason it is called thirds. Not trying to be rude.
2/21 is.
Well, isn't that just a happy little math problem! If one third of the 21 students are girls, that means two thirds are boys. To find out how many boys are in the class, you can multiply 21 by two thirds, which equals 14 boys. Just imagine all those happy little boys and girls learning together in harmony.