（2014•孝感模拟）下面各题怎样简便就怎样算49+59-0.625-0.3752536×56+1136÷65（115+125）×1534×87+12×75%+0.75

Question

（2014•孝感模拟）

下面各题怎样简便就怎样算 (4)/(9)+(5)/(9)-0.625-0.375	(25)/(36)×(5)/(6)+(11)/(36)÷(6)/(5)
（(1)/(15)+(1)/(25)）×15	(3)/(4)×87+12×75%+0.75

Answer 1

（1）(4)/(9)+(5)/(9)-0.625-0.375                 

=1-（0.625+0.375）

=1-1
=0

（2）(25)/(36)×(5)/(6)+(11)/(36)÷(6)/(5)
=(25)/(36)×(5)/(6)+(11)/(36)×(5)/(6)
=（(25)/(36)+(11)/(36)）×(5)/(6)
=1×(5)/(6)
=(5)/(6)

（3）（(1)/(15)+(1)/(25)）×15 
=(1)/(15)×15+(1)/(25)×15
=1+(3)/(5)
=1(3)/(5)

（4）(3)/(4)×87+12×75%+0.75
=0.75×87+12×0.75+0.75
=（87+12+1）×0.75
=100×0.75
=75