括号64×3/4÷28括号除80%
括号64×3/4÷28括号除80%
括号64×3/4÷28括号除80%
=(48÷28)÷4/5
=12/7x5/4
=15/7
=2又1/7
括号3/4-3/5括号除以3/4
(3/4-3/5)÷3/4
=(15/20-12/20)×4/3
=3/20×4/3
=1/5
六除以括号3/5加3/4括号。
解题如下:
6÷(3/5+3/4)
=6÷(12/20+15/20)
=6÷27/20
=6×20/27
=40/9
括号1/2-3/8括号除3/4
括号1/2-3/8括号除3/4
=(4/8-3/8)×4/3
=1/8×4/3
=1/6
括号28 3/5括号加10/7。
脱式计算
(28+5/3)x10/7
=28x10/7+10/3x5/7
=40+50/21
=42又8/21
括号3/4减掉1/15乘于九括号除以3/4
(3/4-1/15×9)÷(3/4)
=(3/4)÷(3/4)-(3/5)÷(3/4)
=1-4/5
=1/5
括号-3/4-7/8括回除以括号-5/6
(-3/4-7/8)÷(-5/6)
=13/8÷5/6
=39/20
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29×3/4 括号-29括号乘以1/2 29×括号-1/4括号
29×3/4+(-29)×1/2+29×(-1/4)
=29×3/4-29×1/2-29×1/4
=29×(3/4-1/2-1/4)
=29×0
=0
四乘括号3/26+3/4括号等于几四成括号3/16+3/4括号等于几
4×(3/26+3/4)
=4×3/26+4×3/4
=6/13+3
=3又6/13
小伙25%+1/3括号乘括号1/4-12.5%括号除以3/8
(25%+1/3)×(1/4-12.5%)÷3/8
=7/12×1/8÷3/8
=7/96÷3/8
=7/36