Question

Write the natural number from 1 to 20.
What fraction of them are prime numbers?​

Answer 1

Answer:

8/20 OR 2/5

Step-by-step explanation:

Natural Numbers are : 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20

Prime no. are : 2,3,5,7,11,13,17,19

Fraction : 8/20 or 2/5

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Answer 2

No. of natural numbers from 1-20 = 20

No. of prime numbers from 1-20 = 8

therefore, fraction of prime numbers = 8/20

= 2/5