Question

which of the following has a terminating decimal expansion?

$a. \: \: \: \: \: 32 \div 91$
$b. \: \: \: \: \: 19 \div 80$
$c. \: \: \: \: 23 \div 45$
$d. \: \: \: \: 25 \div 42$

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Answer 1

Answer:

b. as its denominator is in the form 2m*5n

it is 2⁴*5¹

Answer 2

Answer:

19/80 is the answer.

Step-by-step explanation:

80 is a factor of 2^4×5

i, e : terminating decimal expansion