Answer :

Write the decimal number as a fraction (over 1)
23.8 = 23.8 / 1

Multiplying by 1 to eliminate 1 decimal places
we multiply top and bottom by 1 10's
Numerator (N)
N = 23.8 × 10 = 238
Denominator (D)
D = 1 × 10 = 10
N / D = 238 / 10

Simplifying the fraction
238/10 = 119/5=  23  4/5

FINAL ANSWER: 23 4/5