Question

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

3 over 2, 2 over 3, 3 over 4, 5 over 7

3 over 2 and 2 over 3
3 over 4 and 5 over 7
3 over 2 and 3 over 4
2 over 3 and 5 over 7

Answer 1

@KamiBug @Michele_Laino

Answer 2

please note that:
2/3 is a periodic number

Answer 3

and 5 and 7 have not divisors in common, since they are relatively prime numbers, so?

Answer 4

hmmmmmmmm....... So then

Answer 5

its not that?

Answer 6

please try!

Answer 7

is it the first option?

Answer 8

not a or c

Answer 9

right?

Answer 10

option a contains 2 over 3, which is a periodic number

Answer 11

ok so tell me, is 5/7 part of the answer?

Answer 12

no, I don't think, because 5 an 7 have not divisors in common

Answer 13

so i think its a

Answer 14

no, because a contains the numbe 2 over 3 which is a periodic number, namely a number whose decimals are infinite

Answer 15

so then c?

Answer 16

well done! that's right!

Answer 17

Which fraction is equivalent to fraction with numerator 4 and denominator negative 9?

fraction with numerator negative 4 and denominator negative 9
fraction with numerator 9 and denominator 4
fraction with numerator negative 9 and denominator 4
fraction with numerator negative 4 and denominator 9

Answer 18

i think its either c or d

Answer 19

please 4 has to be a numerator and not a denominator

Answer 20

4/-9 = -4/9

Answer 21

thanks!!

Answer 22

thanks!!

Answer 23

Which of the following rational numbers is equal to 3 point 4 with bar over 4?

31 over 9, 32 over 9, 33 over 9, 34 over 9

31 over 9
32 over 9
33 over 9
34 over 9

Answer 24

3.4...and the bar over the 4 means the 4 goes on...like this : 3.4444444

31/9 = 3.4444444