2/17×34/5×4/3 12/5×5/2×6/5 (都要脱式的,)

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2/17×34/5×4/3 12/5×5/2×6/5 (都要脱式的,)
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2/17×34/5×4/3 12/5×5/2×6/5 (都要脱式的,)
2/17×34/5×4/3 12/5×5/2×6/5 (都要脱式的,)

2/17×34/5×4/3 12/5×5/2×6/5 (都要脱式的,)
2/17×34/5×4/3
=2/1×2/5×4/3
=(2×2×4)/(1×5×3)
=16/15
12/5×5/2×6/5
=6/1×1/1×6/5
=(6×1×6)/(1×1×5)
=36/5

2/17x34/5x4/3
=(2x2x17x4)/(17x5x3)
=16/15
12/5x5/2x6/5
=(12x5x6)/(5x2x5)
=36/5

16/15 12/5