There are: 21 divided by 1/12 = 252 twelfths
16
1
2 groups of 16, 4 groups of 8, 8 groups of 4, 16 groups of 2. Not really divided or in groups, but there could be 1 group of 32 or everyone by themselves.
0.4
Leo oliver says 21
Yes. It can be divided into -- 21 equal groups of 1 each -- 3 equal groups of 7 each -- 7 equal groups of 3 each
Yes, mammals are divided into many sub-groups.
234
That depends on how many groups you want.
Divided by, is like saying how many groups are there. E.g. 24 divided by 4 = how many groups of 4 are there in 24, so a smaller number would equal more groups to fit into the larger number.
2
10
four
There are three main groups: Igneous, Sedimentary, and Metamorphic.
21
There are: 21 divided by 1/12 = 252 twelfths