Question

【1又1/10+2又7/20÷(3又1/12-1.125)】×9/23-1/6 简便运算

Answer 1

【1又1/10+2又7/20÷(3又1/12-1.125)】×9/23-1/6
=【11/10+47/20÷(37/12-9/8)】×9/23-1/6
= 【11/10+47/20÷(74/24-27/24)】×9/23-1/6
= 【11/10+47/20÷47/24】×9/23-1/6
=【11/10+24/20】×9/23-1/6
=46/20×9/23-1/6
=9/10-1/6
=27/30-5/30
=22/30
=11/15

Answer 2

(1 )
(9-7)+(6-4)=2+2=4
(2)
(1.125-1/8)+(-0.6-3.4)=1-4=-3
(3)
(3.2-2,2)+(-5.125-43.875)=1-49=-48
(4)
(-3/4-1/4)+(1/2-1/2+3)=-1+3=2
满意的话顺手采纳下，不用加分了