Answer + Explanation:
(9 and 2/7) - (6 and 5/7)
We have:
9 and 2/7
= 8 + 1 and 2/7
= 8 + 7/7 + 2/7
= 8 + 9/7
= 8 and 9/7
⇒ (9 and 2/7) - (6 and 5/7)
= (8 and 9/7) - (6 and 5/7)
= 8 - 6 and 9/7 - 5/7
= 2 and 4/7
So (9 and 2/7) - (6 and 5/7) = 2 and 4/7