a) 1/2 - 1/3 =

A. 1/6

B. 5/6

C. 3/6

b) 7/13 - 1/2 =

A. 6/11

B. 1/26

C. 11/26

c) A chef had 8/9 kg of floor. He used 4/5 kg to prepare ugali. What fraction of ugali remained?

A.40/45

B. 4/45

C. 36/45