-9又8/19÷(-1/19) 、 (-1/2+1/6-3/8+5/24)÷(1/24)(0.25)÷(-3/7)*(-1-1/5)
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-9又8/19÷(-1/19)、(-1/2+1/6-3/8+5/24)÷(1/24)(0.25)÷(-3/7)*(-1-1/5)-9又8/19÷(-1/19)、(-1/2+1/6-3/8+5/24)÷
-9又8/19÷(-1/19) 、 (-1/2+1/6-3/8+5/24)÷(1/24)(0.25)÷(-3/7)*(-1-1/5)
-9又8/19÷(-1/19) 、 (-1/2+1/6-3/8+5/24)÷(1/24)
(0.25)÷(-3/7)*(-1-1/5)
-9又8/19÷(-1/19) 、 (-1/2+1/6-3/8+5/24)÷(1/24)(0.25)÷(-3/7)*(-1-1/5)
-9又8/19÷(-1/19)
=(9+8/19)x19
=9x19+8/19x19
=171+8
=179
(-1/2+1/6-3/8+5/24)÷(1/24)
=(5/24+1/6-1/2-3/8)x24
=5/24x24+1/6x24-1/2x24-3/8x24
=5+4-12-9
=-12
(0.25)÷(-3/7)*(-1-1/5)
=1/4x7/3x(1+1/5)
=7/12x6/5
=7/10
-9又8/19÷(-1/19)=179,(-1/2+1/6-3/8+5/24)÷(1/24)=-2,(0.25)÷(-3/7)*(-1-1/5)=7/10.