Question

3. Divide the sum of 2/3 and -1/7 by their difference​

Answer 1

Answer:

• 11/77

Step-by-step explanation:

[2/3 + (-1/7)] ÷ [2/3 - (-1/7)] =

= (2/3 - 1/7) ÷ (2/3 + 1/7) =

= 11/21 ÷ (2/3 + 1/7) =

= 11/21 ÷ 17/21 =

= 11/21 × 21/17 =

= 11 × 1/77 =

= 11/77