(-5)x3/13+(-5)x(-2/13)-5X1/13+0.125x(-14/13)x(-8)不要一个得数

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(-5)x3/13+(-5)x(-2/13)-5X1/13+0.125x(-14/13)x(-8)不要一个得数(-5)x3/13+(-5)x(-2/13)-5X1/13+0.125x(-14/13)x

(-5)x3/13+(-5)x(-2/13)-5X1/13+0.125x(-14/13)x(-8)不要一个得数
(-5)x3/13+(-5)x(-2/13)-5X1/13+0.125x(-14/13)x(-8)
不要一个得数

(-5)x3/13+(-5)x(-2/13)-5X1/13+0.125x(-14/13)x(-8)不要一个得数
(-5)x3/13+(-5)x(-2/13)-5X1/13+0.125x(-14/13)x(-8)
=-5x(3/13-2/13-1/13)+1/8x(-14/13)x(-8)
=0-14/13
=-14/13
台湾真珍提供

(-5)x3/13+(-5)x(-2/13)-5X1/13+0.125x(-14/13)x(-8)
=(-3)x5/13+2x(5/13)-5/13+(14/13)x(0.125×8)
=5/13×(-3+2-1)+14/13
=-10/13+14/13
=4/13