выполните рациональным способом

3ц1/8-7ц5/6=25/24-47/24=22/24=- 11/12; -11/12: -4ц17/24=22/113; 22/113•-1,8=22/113•-18/10=- 198/113=-1ц85/113; 5ц1/9•6/23=46/6•6/23=4/3=1ц1/3; 1ц1/3-4=1ц1/3-3ц3/3=-2ц2/3; - 2ц2/3•3/10=8/3•3/10=- 4/5; - 4/5:- 1ц1/3=4/5:4/3=3/5;