9/7/5/11+11/5×9/2怎样用简便放法计算
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9/7/5/11+11/5×9/2怎样用简便放法计算
![9/7/5/11+11/5×9/2怎样用简便放法计算](/uploads/image/z/17759193-33-3.jpg?t=9%2F7%2F5%2F11%2B11%2F5%C3%979%2F2%E6%80%8E%E6%A0%B7%E7%94%A8%E7%AE%80%E4%BE%BF%E6%94%BE%E6%B3%95%E8%AE%A1%E7%AE%97)
9/7÷5/11+11/5×9/2
=9/7×11/5+11/5×9/2
=11/5(9/7+9/2)
=11/5×81/14
=891/70
=9/7×11/5+11/5×9/2
=11/5(9/7+9/2)
=11/5×81/14
=891/70