(1又8分之5-0.125)÷(60%-5%) 50÷50%×50%×50÷(78%+0.22) 3又2分之1÷(-4)+360×25%-0.25×36.5

问题描述:

(1又8分之5-0.125)÷(60%-5%) 50÷50%×50%×50÷(78%+0.22) 3又2分之1÷(-4)+360×25%-0.25×36.5

(1又8分之5-0.125)÷(60%-5%)
=(13/8-1/8)÷(55%)
=3/2×20/11
=30/11
50÷50%×50%×50÷(78%+0.22)
=50×50÷1
=2500
3又2分之1÷(-4)+360×25%-0.25×36.5
=-7/2×1/4+360×1/4-36.5×1/4
=1/4(-3.5+360-36.5)
=1/4×320
=80