Question

数学题：[5又5/6-(6又3/8)-|1又7/15|]*(-120) 1-{1-[1-3又1/5*(-5/16)]*3}/(-1)

Answer 1

1.8×[(77/12)/16+(3/8)×(9-247/120)]/(11/4)
=1.8×[77/(12×16)+(3/8)×(833/120)]/(11/4)
=(1又4/5)×(77/192+833/320)×(4/11)
=(9/5)×(385/960+2499/960)×(4/11)
=(9/5)×(721/240)×(4/11)
=2163/1100
=1又1063/1100

追问

第一道[5又5/6-(6又3/8)-|1又7/15|]*(-120) 第二道1-{1-[1-3又1/5*(-5/16)]*3}/(-1)

追答

e额
一道=-700+765+176=241

Answer 2

[5又5/6-(6又3/8)-|1又7/15|]*(-120)
=(35/6-51/8-22/15)*(-120)
=[(1400-1530-352)/240]*(-120)
=241
1-{1-[1-3又1/5*(-5/16)]*3}/(-1)
=1-{1-[1-16/5*(-5/16)]*3}/(-1)
=1-[1-(1+1)]*3}/(-1)
=1-(1-6)/(-1)
=1-5
=-4

Answer 3

题目有问题*(-120) 1？？？

追问

第一道[5又5/6-(6又3/8)-|1又7/15|]*(-120) 第二道1-{1-[1-3又1/5*(-5/16)]*3}/(-1)