2分之1×8分之5-8分之3×2分之1
2分之1×8分之5-8分之3×2分之1
解:原式=1/2(5/8-3/8)
=1/2*2/8
=1/8
4分之1+8分之5-8分之3=
解:
这个这样计算:
1/4+5/8-3/8
=1/4+(5/8-3/8)
=1/4+2/8
=1/4+1/4
=1/2
=0.5
(7分之8+3分之1)÷4分之3、 8-13分之10÷26分之5-8分之5
1,
=(8/7+1/3)/(3/4)
=(24/21+7/21)*4/3
=31/21*4/3=124/63
2,
=8-10/13/(5/26)-5/8
=8-10/13*26/5-5/8
=8-4-5/8
=4-5/8
=32/8-5/8
=27/8
12分之5-8分之3+3分之2
17/24
(1o分之7 6分之5-8分之3)x2o
(10分之7+6分之5-8分之3)x20
= 10分之7 x20 +6分之5 x20-8分之3x20
= 14 + 3分之50 - 2分之15
= 14 + 17-3分之1-7-2分之1
= -3分之1-2分之1
= -6分之5
(6分之5-8分之3)/48分之1
(5/6-3/8)*48
=40-18=22
(1-5分之4*12分之1)/3分之1 3分之2*5分之8+3分之1/5分之8 1400*(1+0
(1-5分之4×12分之1)÷3分之1
=(1-1/15)÷1/3
=14/15×3
=2.8
3分之2×5分之8+3分之1÷8分之5
=2/3×8/5+1/3×8/5
=(2/3+1/3)×8/5
=8/5×1
=1.6
1400×(1+0.2)
=1400+1400×0.2
=1400+280
=1680
13分之9×14-13分之9
=9/13×(14-1)
=9/13×13
=9
6分之5×[0.375÷(5分之2-4分之1)]
=6分之5×[0.375÷0.15]
=6分之5×2.5
=12分之25
-2+|5-8|+24÷(-3) (-1又3分之1)÷0.8×(-7分之6)
-2+|5-8|+24÷(-3)
=-2+3-8
=-7
(-1又3分之1)÷0.8×(-7分之6)
=4/3*5/4*6/7
=10/7
3分之22÷[4分之5÷(3分之14一2分之1)] 9分之2十2分之1÷5分之4十8分之3
=22/3chuyi(5/4chuyi25/6)
=22/3chuyi3/10
=220/9
8分之5-8分之3-12分之1=多少
6分之1……谢谢