
7又2分之1乘以8又9分之3乘以12.5乘以0.032加5.95除以18分之5减7.2加6.05乘以3又5
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7又2分之1乘以8又9分之3乘以12.5乘以0.032加5.95除以18分之5减7.2加6.05乘以3又5分之3
=15/2×25/3×25/2×0.032+5.95×18/5-7.2+6.05×18/5
=(15/2×0.2)×(25/3×0.4)×(25/2×0.4)+(5.95-2+6.05)×18/5
=1.5×10/3×5+10×18/5
=25+36
=61
=15/2×25/3×25/2×0.032+5.95×18/5-7.2+6.05×18/5
=(15/2×0.2)×(25/3×0.4)×(25/2×0.4)+(5.95-2+6.05)×18/5
=1.5×10/3×5+10×18/5
=25+36
=61
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