1.8x[6又5/12除以16+(9-2又7/12)]除以2又3/4
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/30 17:33:01
x)3Գ6{aohr'ikX́bQX&HtMv6ux:\:oGVo=4Y yF@.Nmthq$|>
nl*}SdՆ@WnohQc 77.iljoa`_\g
1.8x[6又5/12除以16+(9-2又7/12)]除以2又3/4
1.8x[6又5/12除以16+(9-2又7/12)]除以2又3/4
1.8x[6又5/12除以16+(9-2又7/12)]除以2又3/4
1.8×[6又5/12÷16+(9-2又7/12)]÷2又3/4
原式=1.8×[6又5/12÷16+(8又12/12-2又7/12)]÷2又3/4
=1.8×(6又5/12÷16+6又5/12)÷2又3/4
=1.8×(6又5/12×1/16+6又5/12×1)÷2又3/4
=1.8×6又5/12×(1/16+1)÷2又3/4
=1又4/5×6又5/12×17/16×4/11
=9/5×77/12×17/16×4/11
=357/80