(3/4-1/9)÷(3/4+1/9)简便计算

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(3/4-1/9)÷(3/4+1/9)简便计算(3/4-1/9)÷(3/4+1/9)简便计算(3/4-1/9)÷(3/4+1/9)简便计算(3/4-1/9)÷(3/4+1/9)(注:除数和被除数同乘以

(3/4-1/9)÷(3/4+1/9)简便计算
(3/4-1/9)÷(3/4+1/9)简便计算

(3/4-1/9)÷(3/4+1/9)简便计算
(3/4-1/9)÷(3/4+1/9) (注:除数和被除数同乘以36)
=[36*(3/4-1/9)]÷[36*(3/4+1/9)]
=(27-4)÷(27+4)
=23÷31
=23/31

93分之132

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=(3/4×36-1/9×36)÷(3/4×36+1/9×36)
=(27-4)÷(27+4)
=23÷31
=23/31