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43乘75分之22加75分之43乘53简便计算

43乘75分之22加75分之43乘53简便计算 43乘75分之22加75分之43乘53 =43*22/75+43/75*53 =43/75*22+43/75*53 =43/75*(22+53) =43

5分之4×(7分之5+3分之5) 还有4分之3÷【6分之5×(15分之4-6分之1) 4/5 × ( 5/7 + 5/3) 3/4 ÷ [ 5/6 ×( 4/15 - 1/6) ] = 4/5 × 5/7 + 4/5 × 5/3 = 3/4 ÷ ( 5/6 × 4/15 - 5/6 × 1/6) = 4/7 + 4/3 = 3/4 ÷ ( 2/9 - 5/36) = (3*4+4*7)/21 = 3/4 ÷ ...

4/7×3/5+3/7÷5/3 =4/7×3/5+3/7×3/5 =(4/7+3/7)×3/5 =1×3/5 =3/5

1/7(3/4+3/6+6/12)=1/7×7/4=1/4

4分之3加7分之5括号乘5分之77怎样简便计算 (3/4+5/7)x77/5 =3/4x77/5+5/7x77/5 =11又11/20+11 =22又11/20

2/3×1/4×3 =(2/3×3)×1/4 =2×1/4 =1/2 你好,本题已解答,如果满意 请点右下角“采纳答案”。

第一题:分子17×3=51和分母的51约分,分母25×50=125与125约分最后直接剩下30,答案就是30 第二题:将九分之四乘以3拆成九分之四乘2加九分之四,然后提出2,括号里就是九分之四加九分之二加九分之一得九分之十四,加上之前拆的九分之四得2,答...

51又3分之2×5分之2-7分之4 =(51+2/3)x2/5-4/7 =(50+1+2/3)x2/5-4/7 =20+2/5+4/15-4/7 =20+6/15+4/15-4/7 =20+2/3-4/7 =20+14/21-12/21 =20+2/21 =420/21+2/21 =422/21

4.165乘4又五分之4+4.165除以67分之10-4.165除以3分之2能简便计算吗 4.165×4又4/5+4.165÷10/67-4.165÷2/3 =4.165×20/5+4.165×67/10-4.165×3/2 =4.165×(20/5+67/10-3/2) =4.165×(40/10+67/10-15/10) =4.165×92/10 =4.165×9.2 =38.318

=1/2×(1/1×2-1/2×3)+1/2×(1/2×3-1/3×4)+1/2×(1/3×4-1/4×5)+……+1/2×(1/20×21-1/21×22) =1/2×(1/1×2-1/21×22) =115/231

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