Question

what should be added to 13/14 to get -5/21 ?

chapter rational numbers
subject maths
please answer soon​

Answer 1

Answer:

the number to be added is -49/42.

Step-by-step explanation:

Let the number to be added be x.

So,adding x to 13/14 to get -5/21.

$x + \frac{13}{14} = \frac{-5}{21} \\\\ x = \frac{-5}{21} - \frac{13}{14} \\\\ LCM \ of \ 21 \ and \ 14 \ is \ 42\\\\ x = \frac{-5(2)}{21(2)} - \frac{13(3)}{14(3)} \\\\ x=\frac{-10}{42} -\frac{39}{42} \\\\ x = \frac{-10-39}{42} \\\\ x = \frac{-49}{42}$

The number to be added is -49/42.

Answer 2

Answer:

-7/6

Step-by-step explanation:

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X=-5/21=13/14

X= -10-39/42

X= -49/42

X= -7/6