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17/9*5/7-(-5/7)*51/9+(-131/9)÷7/5要有过程

题目详情
17/9*5/7-(-5/7)*51/9+(-131/9)÷7/5要有过程
▼优质解答
答案和解析
17/9*5/7-(-5/7)*51/9+(-131/9)÷7/5
=17/9*5/7 + 5/7 *51/9+(-131/9)*5/7
=[ 17/9 + 51/9+(-131/9)]*5/7
=[ 17/9 + 51/9 -131/9 ]*5/7
= (-7)*5/7
= -5