www.ypnh.net > 2×6/13÷9/26%2/3 (0.75%3/16)×(2/9+1/3) 2/5+3...

2×6/13÷9/26%2/3 (0.75%3/16)×(2/9+1/3) 2/5+3...

(0.75-3/16)÷(2/9+2/3) =(3/4-3/16)÷(2/9+6/9) =(9/16)x(9/8) =81/128

简便计算 1/3÷(4-5/13-8/13) =1/3÷【4-(5/13+8/13)】 =1/3÷【4-1】 =1/3÷3 =1/9 (0.75-3/16)x(2/9+1/3) =9/16×5/9 =5/16

(1) 1 4 ÷(3- 5 13 - 8 13 )= 1 4 ÷[3-( 5 13 + 8 13 )]= 1 4 ÷[3-1]= 1 4 ÷2= 1 8 ;(2)(0.75- 3 16 )×( 2 9 + 1 3 )=( 3 4 - 3 16 )×( 2 9 + 1 3 )= 9 16 × 5 9 = 5 16 .

(3/4-3/16)/(2/9+2/3) =[3/16 (4-1)]/[2/9 (3+1)] =(9/16)/(8/9) =9*9/(16*8) =81/128

(5分1.125*3+125*5+25*3+25 2.9999*3+101...15. 6 ×( 1/2 + 2/3 ) 16. 8 × 4/5...2、 2-6/13÷9/26-2/3 3、 2/9+1/2÷4...

3x-8=16 7(x-2)=2x+3 3x+9=270 12x=300-...0.3×7+4x=12.5 x÷1.5-1.25=0.75 4x-1.3...3x+6=18 2(2.8+x)=10.4 (x-3)÷2=7.5 13...

2,12,36,80,168 N=(N-1)*2+8 0,4,16,40,80,140 N=4*(n-1)+2*(N-1)-(N-2) N为结果,n为位数

24+6=30(个)30÷24=125% 125%-100%=25%9、...7余7=6余12=5余17=4余22=3余27=2余32=1...2/5+3/8=31/40; (31/40)/(1/4)=3.1(千克...

1/12 5 1 1/3 11/24

(5/6-1/8)÷6/3÷6 =(5/6-1/8)×12 =10-3/2 =10-1.5 =8.5 (0.75-3/16)X(2/9+2/3) =(12/16-3/16)×(2/9+6/9) =9/16×8/9 =8/16 =2分之1 2/17*37÷15/17÷35/37 =2*15/37×37/35 =6/7 =7分之6 (18*11/23+5÷23/11)*60% =(18*11/23+5*11/23)*0.6 =11/2...

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