Question

What is `\frac{3.9}{5.0}`?

Answer 1

`3.9/5.0=0.78`

Explanation:

`3.9/5.0`

= `(3.9xx2)/(5.0xx2)` - multiplying both numerator
`color(white)(XXXXXX)`and denominator by `2`

= `7.8/10.0`

= `7.8/10xx10/10` - converting decimal into normal fraction

= `78/100` - by multiplying by 1.

= `0.78` - converting normal fraction to decimal fraction