(8/15÷0.32--7/9×0.375)÷1又3/8 (1又8/13×13/42+2/3)÷(11--1又2/3) 今天就要

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(8/15÷0.32--7/9×0.375)÷1又3/8 (1又8/13×13/42+2/3)÷(11--1又2/3) 今天就要

(8/15÷0.32--7/9×0.375)÷1又3/8 (1又8/13×13/42+2/3)÷(11--1又2/3) 今天就要
(8/15÷0.32--7/9×0.375)÷1又3/8 (1又8/13×13/42+2/3)÷(11--1又2/3) 今天就要

(8/15÷0.32--7/9×0.375)÷1又3/8 (1又8/13×13/42+2/3)÷(11--1又2/3) 今天就要
(8/15÷0.32--7/9×0.375)÷1又3/8
=(8/15÷32/100-7/9×375/1000)÷11/8
=(8/15×25/4-7/9×3/8)×8/11
=(10/3-7/24)×8/11
=73/24*8/11
=73/33
(1又8/13×13/42+2/3)÷(11--1又2/3)
=(21/13×13/42+2/3)÷(33/3-5/3)
=(1/2+2/3)÷28/3
=7/6×3/28
=1/8