Contact us
Choose a category below so we can get back to you as quickly as possible.
化簡好後是七分之一乘以(十三分之八+十三分之六)=十三分之二
=3/2×7/13 +7/8×1/13 = 3/2×7/13 + 1/8×7/13 = 7/13×(3/2+1/8) =7/13×13/8 =7/8
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.