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负6/5÷括号7/4-1/4括回乘以5/8等于多少? 25乘以小括号4十8

负6/5÷括号7/4-1/4括回乘以5/8等于多少?25乘以小括号4十8

5/6-括号1/8 4/7括号答案等于多少

5/6-(1/8+4/7)

=5/6-1/8-4/7

=17/24-4/7

=23/168

括号7/8-5/6括号乘括号1/2-1/4=

(7/8-5/6)x(1/2-1/4)

=(21/24-20/24)x(2/4-1/4)

=1/24x1/4

=1/96

括号1/7-5/6+3/4/3-7/18括回乘上-36

(1/7-5/6+3/4-7/18)×(-36)

=1/7×(-36)-5/6×(-36)+3/4×(-36)-7/18×(-36)

=-36/7+30-27+14

=11又6/7

四除以括号负七分之五括回×7分之二除以括号负五分之八过

4÷(-5/7)×2/7÷(-8/5)

=4×7/5×2/7×5/8

=28/5×2/7×5/8

=8/5×5/8

=1