7/13×4/5+6/13÷4/5 (7/24-3/16)÷1/8 7/13×4/5+6/13÷5/4简便运算 /是分数线我打错了.还有一个是(3/5+1/3)x15
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7/13×4/5+6/13÷4/5 (7/24-3/16)÷1/8 7/13×4/5+6/13÷5/4简便运算 /是分数线我打错了.还有一个是(3/5+1/3)x15
7/13×4/5+6/13÷4/5 (7/24-3/16)÷1/8 7/13×4/5+6/13÷5/4简便运算 /是分数线
我打错了.还有一个是(3/5+1/3)x15
7/13×4/5+6/13÷4/5 (7/24-3/16)÷1/8 7/13×4/5+6/13÷5/4简便运算 /是分数线我打错了.还有一个是(3/5+1/3)x15
7/13×4/5+6/13÷4/5
=7/13*4/5+6/13*5/4
=2/13*(14/5+15/4)
=2/13*(14*4+15*5)/20
=2*(56+75)/13*20
=262/260
=131/130
(7/24-3/16)÷1/8
=(7/24-3/16)*8
=7/3-3/2
=14/6-9/6
=5/6
7/13×4/5+6/13÷5/4
=7/13*4/5+6/13*4/5
=4/5*(7/13+6/13)
=4/5*1
=4/5
13/7×2/7÷7 3/5X÷3/4=5/6
5/13÷(7-8.4×4/3)÷(6-7/16)能简算的要简算
19/13÷7/5-6/13*5/7
7/13×(4/5÷7/39)简便计算
简算.3/4×4/5÷3/4×5/4 8/13÷7+1/7×6/13 (3/5+1-1/10)
13/14-15/28÷5/8 (5/6-3/4)÷3/8 5/9*5/6+4/9÷6/5 4÷4/5-4/5÷4 7/11÷
13/14-15/28÷5/8 (5/6-3/4)÷3/8 5/9*5/6+4/9÷6/5 4÷4/5-4/5÷4 7/11÷
13/7_0.4+13/6-5/3
1/13+2/13+3/13+4/13+5/13+6/13+7/13+8/13+9/13+10/13+11/13+12/13
(8/7-16/13)÷16/13怎么简算(2/1*5/4-5/2)÷5/8简算13/4÷6+6/5*13/4简算
4/25÷2/5 5/12÷7/9 5/7÷5/8 12/13×4/54/25÷2/5 5/12÷7/9 5/7÷5/8 12/13×4/5 谢谢啦!
15分之7÷4分之13+13分之5×15分之4+15分之4
7/13*0.8+1/13*4/5+5/13*0.08
7分之1×13分之6+13分之8÷7 2又5分之4×【6分之5+4分之3】-12
求(7/12-1/5)*60 4/7*6/13+3/7*6/13 简算
1.2-6/13÷9/26 2.6/7×(4/5-2/3)÷1/5 简便计算
简算1/7+3/5+2/5+5/7 3/4+6/13+7/13-1/4简算1/7+3/5+2/5+5/7 3/4+6/13+7/13-1/4
计算24点:3 4 -6 10;3 -5 7 -13;7 7 3 4;3 5 7-13