www.fltk.net > 9/11×括号3/5%3/7+2/5%4/7括号等于多少

9/11×括号3/5%3/7+2/5%4/7括号等于多少

9/11×(3/5-3/7+2/5-4/7) =9/11x(1-1) =0

0.8×2/12+4.8×(-2/7)÷2.2÷3/7+0.8×9/11 =4/5×1/6-24/5

0.8×2/11+4.8×(-2/7)-2.2÷7/2+0.8×9/11 =0.8×(2/11+9

5/11x5/7+9/12X5/7+(1-2/7) =5/11X5/7+3/7X5/7+5/7

(8/9+1又3/7+6/11)÷(3/11+5/7+4/9) =2×(4/9+5/7+3/11)÷

无解 ,三个奇数的和不可能是偶数(30)。

(2/3-1/7)✘(3/8)=1/4-3/56=14/56-3/56=11/

(1+1/2)(1-1/2)(1+1/3)(1-1/3)……(1+1/99)(1-1/99)

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本题 分数混合运算 : (2/3+7/9x9/28)÷11/12=(2/3+1/4)x12/11

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