Question

13 /15 + 3 7/12-4 9/20. 3 5/6-2,25+5 5/12. а +2а+5а+7а. 11 2/47 -y=5 1/2

Answer 1

1.) 13/15+37/12-49/20=(52+185-147)/60=90/60=9/6=1.5
2.)
35/6-225/100+55/12= 5целых5/6-2ц.1/4+4ц.7/12=7ц.(10-3+7)/12=8ц.1/6