Keisha's desk had 11/12 grams of dust on it. She wiped away 1/12 grams of the dust.

How many grams of dust are left on her desk?

Write your answer as a fraction in simplest form

10/12 grams of dust are left on her desk.

10/12 = 5/6

Therefore, 5/6 grams of dust are left on her desk.