Answer:
A natural number is always a rational number
Step-by-step explanation:
A rational number is any number that can be expressed as a quotient, a fraction, a numerator, denominator, or a decimal
4.2
3/4 x 20
3/4 x 20/1
3 x 20 = 60
4 x 1 = 4
60 / 4 = 15