20-10又1分子2等于多少
问题描述:
20-10又1分子2等于多少
答
9又1分之2
答
20 - 10 1/2 = 40/2 - 21/2 = 19/2 = 9.5
20-10又1分子2等于多少
9又1分之2
20 - 10 1/2 = 40/2 - 21/2 = 19/2 = 9.5