(3又3/5-1又5/7)*11又2/3/(2又2/9-2又1/18)一定要简便计算啊!
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![(3又3/5-1又5/7)*11又2/3/(2又2/9-2又1/18)一定要简便计算啊!](/uploads/image/z/1104794-26-4.jpg?t=%283%E5%8F%883%2F5-1%E5%8F%885%2F7%29%2A11%E5%8F%882%2F3%2F%282%E5%8F%882%2F9-2%E5%8F%881%2F18%29%E4%B8%80%E5%AE%9A%E8%A6%81%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%E5%95%8A%21)
(3又3/5-1又5/7)*11又2/3/(2又2/9-2又1/18)一定要简便计算啊!
(3又3/5-1又5/7)*11又2/3/(2又2/9-2又1/18)
一定要简便计算啊!
(3又3/5-1又5/7)*11又2/3/(2又2/9-2又1/18)一定要简便计算啊!
(3又3/5-1又5/7)*11又2/3/(2又2/9-2又1/18)
=(18/5-12/7)*35/3/(20/9-37/18)
=(6*7-4*5)/(77/18)
=(42-20)/(77/18)
=22/(77/18)
=22*(18/77)
=(2*18)/11
=36/11