Question

what should be added to the sum of 3/7 and thrice of - 6/7 to get 17/13

Answer 1

Answer:

Step-by-step explanation:

Let the number added be x

$\frac{3}{7}$ + $3(\frac{-6}{7} )$ + x = $\frac{17}{13}$

⇒$\frac{3}{7} - \frac{18}{7}$ + x = $\frac{17}{13}$

⇒x= $\frac{17}{13} + \frac{15}{7}$

⇒x= $\frac{119- 195}{ 91} = \frac{-76}{91}$

Answer 2

Step-by-step explanation:

3/7 + 3(-6/7)+x=17/13

3/7-18/7+x=17/13

x=17/13+15/7

x=119-195/91

x=-76/91