To write as a decimal number, rounding to 3 decimal numbers,
you can do:
- key in: '28 : 42 =' , followed by rounding,
or: use the 'a b/c' button, left column, 3rd from above:
- key in: '28 a b/c 42 ='. Now you get your answer as a fraction!
To change this into a decimal number, key in: a b/c.
Finally round again.