Question

Divide 21 by 2. And please explain why we put 0 under 1 and why we directly added a '.' to make 1 to 10.
I. Confused please explain it properly
.

Answer 1

Answer:

1.05

Step-by-step explanation:

answer is posted in attachment

Answer 2

Answer:

21 ÷ 2

= 1.5 (for example )

1.5 ×2 gives 3 not the 21

but 10.5 × 2 gives 21