简便运算 (7.6×0.76×2.4)÷(3/4×4/5×19/10)

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简便运算(7.6×0.76×2.4)÷(3/4×4/5×19/10)简便运算(7.6×0.76×2.4)÷(3/4×4/5×19/10)简便运算(7.6×0.76×2.4)÷(3/4×4/5×19/1

简便运算 (7.6×0.76×2.4)÷(3/4×4/5×19/10)
简便运算 (7.6×0.76×2.4)÷(3/4×4/5×19/10)

简便运算 (7.6×0.76×2.4)÷(3/4×4/5×19/10)
是不是(7.6×0.75×2.4)÷(3/4×4/5×19/10)
=(7.6÷19/10)×(0.75÷3/4)×(2.4÷4/5)
=4×1×3
=12

(7.6×0.75×2.4)÷(3/4×4/5×19/10)
=(7.6÷19/10)×(0.75÷3/4)×(2.4÷4/5)
=4×1×3
=12

(7.6×0.76×2.4)÷(3/4×4/5×19/10)
=(4×1.9×0.76×3×0.8)÷(3/4×0.8×1.9)
=4×3×0.76÷3/4
=4×3×0.76×4/3
=16×0.76
=12.16

(7.6×0.76×2.4)÷(3/4×4/5×19/10)
=76/10×76/100×24/10×4/3×5/4×10/19
(约分)=4×76×4/100=12.16