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3/4减3/16的差乘2/9加1/3的和过程

=(3/4-3/16)X(2/9+1/3) =(12/16-3/16)X(2/9+3/9) =(9/16)X(5/9) =5/16

(3/4-3/16)×(2/9+1/3) =9/16×5/9 =5/16

(3/4)X(1/2)-(3/16)÷(9/4) =3/8-(3/16)X(4/9) =3/8-1/12 =9/24-2/24 =7/24

(3/4-1/16)×(1/9+1/3)用递等式计算 =(12/16-1/16)x(1/9+3/9) =11/16x4/9 =11/36

(四分之三减3/16)×(2/9+1/3)简便计算 (3/4-3/16)×(2/9+1/3) =9/16×5/9 =5/16 确定,就是这个样

变形: 2⁰/(3×1),2¹/(3×2),2²/(3×3),2³/(3×4),2⁴/(3×5),…… 规律:从第1项开始,每一项的分母都等于2的 项数减一 次方,分母都等于项数的3倍。并化简为最简分数。 后面一项=2⁵/(3×6)=32/18=16/9 即:1/3,...

(3/4-3/16)×(2/9+1/3) =9/16×5/9 =5/16

((3/4)-(3/16))*((2/9)+(1/3)) = 0.3125

(3/4-3/16)×(2/9+1/3) =(12/16-3/16)×(2/9+3/9) =9/16×5/9 =5/16

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