早教吧作业答案频道 -->数学-->
8/15+2/3-3/4(/代表分数线)(2/3+2/15)×45(4/5+1/4)除以7/3+7/1030除以(3/4-3/8)6/13+7/13×1346×44/4520×(4/5+7/10-3/4)(8/9-4/27)除以1/271/6+3/4×2/3除以2能简算就简算,不大确定就普通算法.
题目详情
8/15+2/3-3/4(/代表分数线) (2/3+2/15)×45 (4/5+1/4)除以7/3+7/10 30除以(3/4-3/8)
6/13+7/13×13 46×44/45 20×(4/5+7/10-3/4) (8/9-4/27)除以1/27
1/6+3/4×2/3除以2 能简算就简算,不大确定就普通算法.
6/13+7/13×13 46×44/45 20×(4/5+7/10-3/4) (8/9-4/27)除以1/27
1/6+3/4×2/3除以2 能简算就简算,不大确定就普通算法.
▼优质解答
答案和解析
8/15+2/3-3/4=1/3+1/5+2/3-1+1/4=9/20
(2/3+2/15)×45=(2/3)×45+(2/15)×45=36
(4/5+1/4)÷7/3+7/10 =(21/20)×(3/7) +7/10=23/20
30÷(3/4-3/8)=80
6/13+7/13×13 =97/13
46×44/45 =(45^2-1)/45
20×(4/5+7/10-3/4)=16+14-15=15
(8/9-4/27)÷1/27 =24-4=20
1/6+3/4×2/3÷2=1/6+1/4=5/12
(2/3+2/15)×45=(2/3)×45+(2/15)×45=36
(4/5+1/4)÷7/3+7/10 =(21/20)×(3/7) +7/10=23/20
30÷(3/4-3/8)=80
6/13+7/13×13 =97/13
46×44/45 =(45^2-1)/45
20×(4/5+7/10-3/4)=16+14-15=15
(8/9-4/27)÷1/27 =24-4=20
1/6+3/4×2/3÷2=1/6+1/4=5/12
看了 8/15+2/3-3/4(/...的网友还看了以下: