Contact us
Choose a category below so we can get back to you as quickly as possible.
1、 4/7÷1/4×2/9=32/63 這個數的九分之二是32/63 2、 8×5/9÷10/27 =40/9×27/10 =12 商是12
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.