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2/3×3/4÷8分之五递等式计算

2/3×3/4÷5/8 =1/2÷5/8 =4/5

5/8-3/4-2/3 =-1/8-2/3 =-19/24 ----------------------------------------------------------

14    十八分之七

237✖️3➗4✖️8 =711x(8÷4) =711x2 =1422 , 你好,本题已解答,如果满意 请点右下角“采纳答案”。

4/5-(3/8-1/5) =4/5-3/8+1/5 =4/5+1/5-3/8 =1-3/8 =5/8

脱式计算3/5-2/5+(4/7+3/7), 等于1/5+1=1又1/5, 就是这样算的

5又5分之3一0点625+4又8分之三用递等式计算 5又3/5-0.625+4又3/8 =5.6-0.625+4.375 =4.975+4.375 =9.35

(1)7/8÷3/4+7/8x2/3 =7/8x4/3+7/8x2/3 =7/8x(4/3+2/3) =7/8x2 =7/4 (2)0.45×1/6÷0.45x1/6 =(0.45÷0.45)x(1/6x1/6) =1x1/36 =1/36 (3)4.8÷5/13-4又4/5x1.6 =4.8x13/5-4.8x8/5 =4.8x(13/5-8/5) =4.8x1 =4.8

(1)4.89×101-4.89,=4.89×(101-1),=4.89×100,=489; (2)0.8×(3.2-2.99÷2.3),=0.8×(3.2-1.3),=0.8×1.9,=1.52;(3)31.7-0.5×0.7-1.65,=31.7-0.35-1.65,=31.7-(0.35+1.65),=31.7-2,=29.7.

(1)7200÷8÷3,=900÷3,=300;(2)350+25×11,=350+275,=625;(3)656÷(2×4),=656÷8,=82.

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