用简便方法计算!
1个回答
2014-12-22
展开全部
((1/2+1/3+1/4) + (91)) / (1/2 + 1/3 + 1/4 ) 拆分成两部分
(1/2 + 1/3 + 1/4) / (1/2 + 1/3 + 1/4) + 91 / ((6+4+3)/12)
= 1 + 91 * 12 / 13 = 1 + (91/13) * 12 = 1 + 7*12 = 85
(1/2 + 1/3 + 1/4) / (1/2 + 1/3 + 1/4) + 91 / ((6+4+3)/12)
= 1 + 91 * 12 / 13 = 1 + (91/13) * 12 = 1 + 7*12 = 85
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询