Question

Arrange the following rational numbers in ascending order:

(A) -4/5

B) -5/12

C) -7/18

D) -2/3

1. (A), (B), (D), (C)
2. (C), (D), (B), (A)
3. (A), (D), (B), (C)
4. (D), (C), (B), (A)

Answer 1

Correct Answer - Option 3 : (A), (D), (B), (C)

CONCEPT:

Take the LCM of the denominators and express the fractions with that LCM denominator.

CALCULATION:

The LCM of 5, 12,18, 3 = 180

\({-4\over 5 } = {-144 \over 180}\)

\({-5\over 12 } = {-75 \over 180}\)

\({-7\over 18 } = {-70 \over 180}\)

 

\({-2\over 3 } = {-120 \over 180}\)

Therefore the answer is option 3

The ascending orders must be arranged by taking into consideration the negative sign.