1.(4/3+15/13)÷60/1
=4/3×60+15/13×60
=45+52
=97
2.106*16/1+54/16
=（106+54）/16
=160/16
=10
3.9*9/1*9*9/1
=（9×9/1）×（9×9/1）
=1×1
=1
4.（8/7-16/5）
=16/14-16/5
=16/5