6/13×8/5×3/11÷(3/26×16/35×9/77)简便运算
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6/13×8/5×3/11÷(3/26×16/35×9/77)简便运算
解:原式=6/13×8/5×3/11÷(3/26×16/35×9/77)
=6/13×8/5×3/11×(26/3×35/16×77/9)
=6/13×8/5×3/11×13*2/3×5*7/2*8×7*11/3*3
=(6/13×13*2/3)×(5*7/2*8×8/5)×(7*11/3*3×3/11)
=4×7/2×7/3
=196/6
=98/3
解:原式=6/13×8/5×3/11÷(3/26×16/35×9/77)
=6/13×8/5×3/11×(26/3×35/16×77/9)
=6/13×8/5×3/11×13*2/3×5*7/2*8×7*11/3*3
=(6/13×13*2/3)×(5*7/2*8×8/5)×(7*11/3*3×3/11)
=4×7/2×7/3
=196/6
=98/3
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