能简算的要简算（12+13+18）×0.243.9+456+6.1+5163001-1998[5815+（116-0.2）×1.5]÷1605000-105×340.15÷0.25+0.75×1.2

Question

能简算的要简算 （(1)/(2)+(1)/(3)+(1)/(8)）×0.24	3.9+4(5)/(6)+6.1+5(1)/(6)	3001-1998
[5(8)/(15)+（1(1)/(6)-0.2）×1.5]÷(1)/(60)	5000-105×34	0.15÷0.25+0.75×1.2

Answer 1

（1）（(1)/(2)+(1)/(3)+(1)/(8)）×0.24
=(1)/(2)×0.24+(1)/(3)×0.24+(1)/(8)×0.24
=0.12+0.08+0.03
=0.2+0.03
=0.23；

（2）3.9+4(5)/(6)+6.1+5(1)/(6)
=3.9+6.1+4(5)/(6)+5(1)/(6)
=（3.9+6.1）+（4(5)/(6)+5(1)/(6)）
=10+10
=20；

（3）3001-1998
=3001-2000+2
=1001+2
=1003；

（4）[5(8)/(15)+（1(1)/(6)-0.2）×1.5]÷(1)/(60)
=[5(8)/(15)+(29)/(30)×1.5]÷(1)/(60)
=[5(8)/(15)+(29)/(20)]÷(1)/(60)
=5(8)/(15)×60+(29)/(20)×60
=332+87
=419；

（5）5000-105×34
=5000-3570
=1430；

（6）0.15÷0.25+0.75×1.2
=0.6+0.9
=1.5．