Question

a rational number between 1/7 and 2/7 is
a) 5/21
b) 1/ 14
c) 2/21
d) 5/14
plz explain which is right answer.

Answer 1

i think the answwer is a

Answer 2

Answer:

let it be a=1/7 &b=2/7

the formula is 1/2(a+b)

1/2(a+b)

1/2(1/7+2/7)

1/2(1+2/7)

1/2×3/7

3/14

so the ans is 3/14

the options are wrong

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