十三分之四加十三分之五乘九分之四等于多少

2024-11-15 15:02:35
推荐回答(1个)
回答1:

十三分之四加十三分之五乘九分之四等于多少

(4/13+5/13)*4/9
=9/13*4/9
4/13

九分之四减十三分之四等于几分之几

4/9-4/13=52/117-36/117=16/117
等于一百一十七分之十六

括号十三分之七加九分之七括号除以十三分之四加九分之四括号等于多少

(7/13+7/9)/(4/13+4/9)
=7x(1/9+1/13)/[4x(1/9+1/13)]
=7/4

九分之四乘二十三又十三分之十二加九分之四乘十三分之一加十二乘九分之一等于多少

4/9×23又12/13+4/9×1/13+12×1/9
=4/9×(23+12/13)+4/9×1/13+4/3
=4/9×23+4/9×12/13+4/9×1/13+4/3
=4/9×(23+12/13+1/13)+4/3
=4/9×24+4/3
=32/3+4/3
=12

十九分之十七乘十三分之四加十九分之四乘十三分之九等于几?(运用简便方法)

17/19*4/13+4/19*9/13
这样就是
17*4/19*13+4*9/19*13
这样就有公分母19*13了
=17*4+4*9/13*19
=8/19

十九分之五乘十三分之九加十三分之五乘十九分之十答案是多少

5/19X9/13+5/13X10/19
=5/19X(9/13十10/13)
=5/19X19/13
=5/13

九分之一×十三分之九加十三分之四÷九

九分之一×十三分之九加十三分之四÷九
=九分之一×十三分之九加十三分之四x9分之1
=9分之1x(13分之9+13分之4)
=9分之1x1
=9分之1
有不明白的可以追问!谢谢!
祝学习进步!

十三分之八乘九分之七加十三分之七乘九分之五等于

13分之8×9分之7+13分之7×9分之5
=13分之8×9分之7+9分之7×13分之5
=9分之7×(13分之8+13分之5)
=9分之7

九分之五÷七分之十三﹢九分之四×十三分之七

九分之五÷七分之十三﹢九分之四×十三分之七
=九分之五×十三分之七﹢九分之四×十三分之七
=(九分之五﹢九分之四)×十三分之七
=1×十三分之七
=十三分之七

三分之五乘十三分之一加九分之五乘十三分之三加十八分之六=

5/3x 1/13+5/9x3/13+6/18
=5/3x1/13+5/3x1/13+6/18
=2x5/3x1/13+1/3
=10/39+13/39
=23/39

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