You could write 2 1/2 or 2.5.
2.5 mm
Observe ===> 0.0025
Sixty two and five tenths or sixty-two and one half.
32.5 cents, or $0.325
We write two and a half as 2.5 in decimal form.
It is 2500 or 2.5 thousand = two and a half thousand
2 2/7 + 3 1/2
i think 2.5 cause its 2 AND [ my teacher told me that and means decimal] a half tenths
"over half" is the same as two times.
12.50 = twelve and a half in its simplest form
0.025
2.5