负三点二加三又七分之三减六点八加五又七分之四
= -3- 1/5 + 3 + 3/7 - 6 - 4/5 + 5 + 4/7
= -3 + 3 - 6 + 5 - (1/5 +4/5 )+ (4/7 + 3/7 )
= -1 - 1 +1
= -1
施主,我看你骨骼清奇,
器宇轩昂,且有慧根,
乃是万中无一的武林奇才.
潜心修习,将来必成大器,
鄙人有个小小的考验请点击在下答案旁的
"选为满意答案"
=-3.2+3 3/7-6.8+5 4/7
=-3.2-6.8+3 3/7+ 5 4/7
=-10+9
=-1
等于负1,谢谢,望采纳