(2/3-4/5+1/2)÷(-15)

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(2/3-4/5+1/2)÷(-15)(2/3-4/5+1/2)÷(-15)(2/3-4/5+1/2)÷(-15)

(2/3-4/5+1/2)÷(-15)
(2/3-4/5+1/2)÷(-15)

(2/3-4/5+1/2)÷(-15)

(2/3-4/5+1/2)÷(-15) (1)2/3 ÷ 5 + 5 ÷ 2/3(2)5 × 5/6 + 5/6 × 5(3)3/8 × 68 - 1/8 ÷ 1/68(4)( 26 ÷ 13/24 ) ÷ 13(5) 1又3/5 - 5/12 × ( 1/4 - 1/2 × 1/2)(6) 4/15 ×( 5/7 - 3/14 ÷ 3/4 )(7) 11/15 + ( 3/4 - 2/3 )÷ 1/5(8) 计算:(1) 3.8 - 7 ÷ 15 - 2/15 × 4(2)0.6 × 1/15 + 13.4 ÷ 15 + 1/15(3)(8又2/5 -10又1/2 × 4/5 ) ÷ 5又3/4(4) 4又3/5 × 7/9 - 3又3/5 ÷ 1又2/7(5) 2 - ( 2/5 + 2/5 × 3/5) ÷ 8/25(6) 6.3 ×[(1.4 + 1/3 ) ÷ (1/4-1/15*2)÷2/5、4/7*(1÷3/4-3/4÷1)简算 4/9×3/4÷9/11 15/16+(7/16-1/4)÷1/2 [1-(2/3+1/6)]÷1/4 1/3×3/4÷(3/4-5/15)简便运算 4/9×3/4÷9/11 15/16+(7/16-1/4)÷1/2 [1-(2/3+1/6)]÷1/4 1/3×3/4÷(3/4-5/15) 12×3/8÷3/4 (1/4+2/9)×72 7/15+8/15×15 3-2/3÷4/5-1/6 (1/3+1/2)÷(1-3/8) 计算; 1.(-16)÷(-1又16分之1)÷(-64) 2.(-4分之5)÷0.25÷(-4分之15)3.(-125)÷(-3分之2)÷(-2分之3) 请问1÷(2÷3)÷(3÷4)÷(4÷5)÷...÷(2008÷2009)÷(2009÷2010)怎么做? 有理数的除法算式题要过程 (-1)×(-2又1/3)÷3.5; (-5)÷(-15)÷(-3)÷2/9 ;3又1/3÷(-2又2/3)÷(-1又1/4);-1+5÷(-1/6)×(-6);(1/5-1/3)×(1/5+1/3)÷1/5÷(-1/3);(-12)÷[(-16)+40÷( 2/15÷(1.1-3/4)+1/5X3/5 15分之11+(4分之3-3分之2)÷5分之1(求解) 15/2÷[1一(5/1+3/1)] (-2/9)×(-18)+(-5/11)×(-3)×2又1/5【(-2)×(-4)+(-5)】×【-3-(-2)×(-3)】(过程要)(-30又3/4)÷(-15)【过程要】(-0.33)÷1/3÷(-9)【过程要】-9÷0.25×(-11/12)(-81)÷2又1/4×4/9÷(-16 1、123454321÷(55555×55555)2、(7/18×4又1/2+6/1 )÷(15又1/3-3又3/4÷ 5/16)×2又1/8第2题2、(7/18×4 1/2+6/1 )÷(15 1/3-3 3/4÷ 5/16)×2 1/8 4/5÷(2/3×15/7)简便计算 (1)24+(-14)+(-16)+8(2)(1又3/4-7/8-2又1/4*1/4)*(-32)(3)(-3又1/5)÷(+4/3)-3/4*(-2/15)+3又7/15÷(-4/3)(4)(-3)÷(-1又3/4)*0.75* I-2又1/2 I ÷ I-3I(5)12-(-18)+(-7)-15(6)(-16 -18÷(-3)的2次幂+5*(-1/2)的3次幂-(-15)÷5-18÷(-3)的2次幂+5*(-1/2)的3次幂-(-15)÷525*3/4-(-25)*1/2+25*(-1/4)要写过程,(-1)-(1-1/2)÷3*【2-(-3)的2次幂】-18÷(-3)的2次幂+5*(-1/2 5/8÷5×4/7= 4/7÷(3÷1/4)= 15/18×(1/2+1/10)=