How do u turn this 3.78 into a fraction

1) 3.78 = 3.78/1

2) Consider 3.78/1 and multiply numerator and denominator by 100:

                         3.78x100)/(1x100) = 378/100

3) Simplify 378/100 → (GCD or GCF = 2)→ 189/50

Then 3.78 = 189/50

That can be read as 3 and 78 one-hundreths meaning it would look like this:
3 78/100
which is simplified to 3 39/50.
if you want an improper fraction you take the denominator and multiply it by the whole number then add the numerator and put it over the original denominator:
50 (3) = 150 + 39 = 189 / 50
which cant be simplified further

Ujjg