
7/4×2.5×4.8÷?(7/2×6/5×0.25)怎么用简便方法?
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7/4×2.5×4.8÷(7/2×6/5×0.25)
=7/4x2.5x4.8/7/2/6/5/0.25
=(7/4/7/2)x(2.5/0.25)x(4.8/1.2)
=0.5x10x4
=5x4
=20
=7/4x2.5x4.8/7/2/6/5/0.25
=(7/4/7/2)x(2.5/0.25)x(4.8/1.2)
=0.5x10x4
=5x4
=20
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7/4×2.5×4.8÷?(7/2×6/5×0.25)
=7/4×10/4×4×4×0.3×2/7×5/6×4
=7/4×2/7×4×4×3×5/6×4
=20
=7/4×10/4×4×4×0.3×2/7×5/6×4
=7/4×2/7×4×4×3×5/6×4
=20
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7/4×2.5×4.8÷?(7/2×6/5×0.25)
=7/4×10/4×4×4×0.3×2/7×5/6×4
=7/4×2/7×4×4×3×5/6×4
=20
=7/4×10/4×4×4×0.3×2/7×5/6×4
=7/4×2/7×4×4×3×5/6×4
=20
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