计算:1.5x²y分之2x -10xy²分之y 2.2ab分之3+4a²分之1 3.ab²分之1+3a²c分之54.2y分之x -3xy²分之2
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![计算:1.5x²y分之2x -10xy²分之y 2.2ab分之3+4a²分之1 3.ab²分之1+3a²c分之54.2y分之x -3xy²分之2](/uploads/image/z/765117-45-7.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A1.5x%26%23178%3By%E5%88%86%E4%B9%8B2x+-10xy%26%23178%3B%E5%88%86%E4%B9%8By+2.2ab%E5%88%86%E4%B9%8B3%2B4a%26%23178%3B%E5%88%86%E4%B9%8B1+3.ab%26%23178%3B%E5%88%86%E4%B9%8B1%2B3a%26%23178%3Bc%E5%88%86%E4%B9%8B54.2y%E5%88%86%E4%B9%8Bx+-3xy%26%23178%3B%E5%88%86%E4%B9%8B2)
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计算:1.5x²y分之2x -10xy²分之y 2.2ab分之3+4a²分之1 3.ab²分之1+3a²c分之54.2y分之x -3xy²分之2
计算:1.5x²y分之2x -10xy²分之y 2.2ab分之3+4a²分之1 3.ab²分之1+3a²c分之5
4.2y分之x -3xy²分之2
计算:1.5x²y分之2x -10xy²分之y 2.2ab分之3+4a²分之1 3.ab²分之1+3a²c分之54.2y分之x -3xy²分之2
1.
2x/5x²y-y/10xy²
=2/5xy-1/10xy
=3/10xy
2.3/2ab+1/4a²
=6a/4a²b+b/4a²b
=(6a+b)/4a²b
3.1/ab²+5/3a²c
=3ac/3a²b²c+5b²/3a²b²c
=(3ac+5b²)/3a²b²c
4.x/2y-2/3xy²
=3x²y/6xy²-4/6xy²
=(3x²y-4)/6xy²
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