Question

Which of the rational number have the terminating decimal representstion? 1) 3/5 2) 7/20 3) 133/125
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Answer 1

Step-by-step explanation:

(i) The prime factor of 5 is 5. Hence 3 / 5 has a terminating decimal

representation.

(ii) 20 = 4 x 5 = 22 x 5.

The prime factors of 20 are both 2's and 5's. Hence 7 / 20 has a terminating decimal

125 = 53

(iiiThe prime factor of 125 is 5's. Hence 133 / 125 has a terminating

decimal.

Answer 2

Answer:

Option (1) (2) and (3) also

Step-by-step explanation:

1.3/5 = 0.6

2.7/20 =0.35

3.133/125=1.064. .....

All rational numbers are terminating.........