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7分之11减括号5分之一加2.4除以2又3分之2

括号负七分之三加上括号五分之一加上括号加七分之二加括号负一又五分之一 (-3/7)+(1/5)+(2...

105×(2/3+1/5+4/7) =105×2/3+105×1/5+105×4/7 =35×2...

1/5÷[(2/3+1/5)×1/13]=1/5÷(13/15×1/13)=1/5÷1/15=3

(-7)*(-22)/7+19*(-22)/7-5*(-22)/7 = -22

(28-1又2/7÷9/14)÷4/5+1又3/25 =(28-2)÷4/5+1又1/25 =2...

(-2)^2-{一1/4+(一1/5X0.6)÷(一2)^2} =4-(-1/4-0.12÷4) =...

(1/2+1/3)÷(3/5)-17/18 =(5/6)×(5/3)-17/18 =25/18-17...

105×(7分之1加3分之2减5分之2)脱式简便计算 =105x1/7+105x2/3-105x2...

答:10/13÷2又19/22-1又2/5*11/13÷7+1/5*22/63 =10/1...

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