2/17×34/5×4/3 12/5×5/2×6/5 (都要脱式的,)
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2/17×34/5×4/3 12/5×5/2×6/5 (都要脱式的,)
2/17×34/5×4/3 12/5×5/2×6/5 (都要脱式的,)
2/17×34/5×4/3 12/5×5/2×6/5 (都要脱式的,)
2/17×34/5×4/3
=2/1×2/5×4/3
=(2×2×4)/(1×5×3)
=16/15
12/5×5/2×6/5
=6/1×1/1×6/5
=(6×1×6)/(1×1×5)
=36/5
2/17x34/5x4/3
=(2x2x17x4)/(17x5x3)
=16/15
12/5x5/2x6/5
=(12x5x6)/(5x2x5)
=36/5
16/15 12/5
2/17×34/5×4/3 12/5×5/2×6/5 (都要脱式的,)
17/12*5/34*3/4如果能简算的要简算
1+2/3*5+3/5*8+4/8*12+5/12*17+1/17
1+2/3*5+3/5*8+4/8*12+5/12*17+1/17
12分之17乘34分之5乘4分之3用脱是计算
17/12乘5/34=?
12分之17乘34分之5
0.75+(-2 3/4)+10.125+(-12 5/17)+(- 4
5-2又17分之14-1又7分之34又5分之4-(2又5分之4+12分之5)
5比x=2.4比1.2 2/3x-1/2x=12 0.125*32*4 (51-34/39)×1/17
34×(5/17+1/2)简算
7分之1×34×7×17分之2= 5分之4×8分之3×9分之5=
7分之1×34×7×17分之2= 5分之4×8分之3×9分之5=
2,3,5,( ),12,17,( )找规律
(2/3-1/5)+(2/3-12/17)-(1/5+5/17)用简便方法计算
(2/3+1/5)+(2/3-12/17)-(1/5+5/17)怎么简算
2.15-(5/6-1/12) 5/17-4/51+2/3是2.15
(1/2×3)+(2/3×5)+(3/5×8)+(4/8×12)+(5/12×17)+(6/17×23)+(7/23×30)=?