33/32-括号17/20。加上17/20括括死等于多少?解题过程:33/32-(17/20+17/20)=33/32-34/20=(165-272)/160=-107/160计算结果为-107/160
33/32-(17/20+17/20)=33/32-17/10=1又1/32-1又7/10=-97/160