21,4-5 1/2-(16 2/3-6.6) решите пж

Question

21,4-5 1/2-(16 2/3-6.6) решите пж

Answer 1

21,4-5 1/2-(16 2/3-6,6)=107/5-11/2-(50/3-33/5)=107/5-11/2-151/15=35/6=5 5/6