Divide by 10/10
Get 120
10% of 1200 = 10% * 1200 = 0.1 * 1200 = 120
7 over 10
10/100 = 1/10
1 over 2
You mean simplify then yes, it would be reduce to 3 over 5.
No you cannot
You don't.
2/5
1/10
10/20 reduces to 1/2.
There are 10 millimeters in one centimeter. Therefore, 1200 millimetres is equal to 1200/10 = 120 centimetres.
There are 10 mm in a cm ...1200 x 10 = 12000 mm