五年级数学分数加减法解方程解方程: 1 5 7 1 1 1 --- + x = --- x — --- = --- x +
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![五年级数学分数加减法解方程解方程: 1 5 7 1 1 1 --- + x = --- x — --- = --- x +](/uploads/image/z/339252-60-2.jpg?t=%E4%BA%94%E5%B9%B4%E7%BA%A7%E6%95%B0%E5%AD%A6%E5%88%86%E6%95%B0%E5%8A%A0%E5%87%8F%E6%B3%95%E8%A7%A3%E6%96%B9%E7%A8%8B%E8%A7%A3%E6%96%B9%E7%A8%8B%EF%BC%9A++1++++++++++++++++++++5++++++++++++++++++++++++++++++++++7++++++++++++1+++++++++++++++++++++++1+++++++++1+++---+++%2B+++x++++%3D+++---++++++++++++++++++++++++x+%E2%80%94++++++---++++%3D++++---+++++++++++++x+++%2B)
五年级数学分数加减法解方程解方程: 1 5 7 1 1 1 --- + x = --- x — --- = --- x +
五年级数学分数加减法解方程
解方程:
1 5 7 1 1 1
--- + x = --- x — --- = --- x + --- = ---
2 6 10 5 4 2
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有点斜 请见谅 !
五年级数学分数加减法解方程解方程: 1 5 7 1 1 1 --- + x = --- x — --- = --- x +
1/2=3/6,3/6+2/6=5/6 2/6化简为1/3
1/5=2/10,9/10-7/10=2/10=1/5 9/10
1/2=2/4,1/4+1/4=2/4=1/2 1/4