题目描述：
一袋大米,第一天吃了三分之一,第二天吃了四分之一,两天吃了49千克,这袋大米有多少千克?答案解析
【答案】49÷（1/3+1/4）=84千克答：这袋大米有84千克． 【其他答案】49
49除以扩号3分之1加3分之2乘以4分之1的和
答：这袋大米有84千克． 【其他答案】49
49除以扩号3分之1加3分之2乘以4分之1的和
一袋大米,第一天吃了三分之一,第二天吃了四分之一,两天吃了49千克,这袋大米有多少千克?
答：这袋大米有84千克． 【其他答案】49
49除以扩号3分之1加3分之2乘以4分之1的和
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