Question

Which of the following numbers can be expressed as a decimal that terminates?

seven over four , five over nine , three over eight , two over three


A. seven over four and three over eight
B. five over nine and two over three
C. seven over four and five over nine
D. three over eight and two over three

Answer 1

Answer:

If numerator and denominator are co-prime then fraction will terminate only if denominator will be of type 2

m

5

n

.

Now let see the denominator of each option one by one

A. 441 cannot be expressed in the form of 2

m

5

n

.

B. 210 = 7x3x2x5 ;cannot be expressed in the form of 2

m

5

n

C. 1600= . 2

6

5

2

D. Cannot be expressed in the form of 2

m

5

n

.