计算 41又1/3×3/4+51又1/4×4/5+61又1/5×5/6

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计算 41又1/3×3/4+51又1/4×4/5+61又1/5×5/6

计算 41又1/3×3/4+51又1/4×4/5+61又1/5×5/6
计算 41又1/3×3/4+51又1/4×4/5+61又1/5×5/6

计算 41又1/3×3/4+51又1/4×4/5+61又1/5×5/6
41又1/3×3/4+51又1/4×4/5+61又1/5×5/6
=(40+4/3)×3/4+(50+5/4)×4/5+(60+6/5)×5/6
=40×3/4+4//3×3/4+50×4/5+5/4×4/5+60×5/6+6/5×5/6
=30+1+40+1+50+1
=123