C=[(-4 3/4)+3 5/8]*1 7/9

Question

C=[(-4 3/4)+3 5/8]*1 7/9

Answer 1

1)-4ц3/4+3ц5/8=-(4ц6/8-3ц5/8)=-1ц1/8; 2) -1ц1/8*1ц7/9=-9/8*16/9=-(9*16)/(8*9)=2 после сокращения.