15.8-7/8+1/5-11/18=?用简便计算
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15.8-7/8+1/5-11/18=?用简便计算15.8-7/8+1/5-11/18=?用简便计算15.8-7/8+1/5-11/18=?用简便计算15.8-7/8+1/5-11/18=(15.8+
15.8-7/8+1/5-11/18=?用简便计算
15.8-7/8+1/5-11/18=?用简便计算
15.8-7/8+1/5-11/18=?用简便计算
15.8-7/8+1/5-11/18
=(15.8+1/5)-(7/8+11/18)
=16-1
=15