(7x减3\5x）除5\12=1\24

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(7x减3\5x）除5\12=1\24(7x减3\5x）除5\12=1\24(7x减3\5x）除5\12=1\24(7x减3\5x）除5\12=1\2432X/5*12/5=1/24384X=25/2

(7x减3\5x）除5\12=1\24
(7x减3\5x）除5\12=1\24

(7x减3\5x）除5\12=1\24
(7x减3\5x）除5\12=1\24
32X/5*12/5=1/24
384X=25/24
X=25/384*24
X=25/9216