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(37/40+7.5%)+32%=1.32(我要过程)(324又1/7-810又1/6+486.5)*4.2/5*(1.4-2/3)/8/15+45%

题目详情
(37/40+7.5%)+32% = 1.32(我要过程)
(324又1/7-810又1/6+486.5)*4.
2/5*(1.4-2/3)/8/15+45%
▼优质解答
答案和解析
(37/40+7.5%)+32%
=(37/40+3/40)+32%
=1+32%
= 1.32
(324又1/7-810又1/6+486.5)*4.2
=(324-810+486)×4.2+(1/7-1/6+1/2)×4.2
=10/21×4.2
=2
2/5*(1.4-2/3)/8/15+45%
=2/5*11/15×15/8+9/20
=11/20+9/20
=1