20 can be divided by 20 and by 2. 20 divided by 20 equals 1, and 20 divided by 2 equals 10.
2
10
10
20
10
20
Twenty divided in half is 20/2 = 10 Twenty divided by half is 20/(1/2) = 40
20 + 20 80 divided by 2 120 divided by 3 20 times 2 10 times 4
2
20 ÷ 1/2 = 20 × 2/1 = 40
0.3333