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Нови4ок15
@Нови4ок15
July 2022
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Помогите решить срочно!!!
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spiritgames
№991
а)x+7/12=3/4 б)x-1/6=1/9 в)x-3/5=3/8
x+7/12=3/4*3 x-1/6*3=1/9*2 x-3/5*8=3/8*5
x+7/12=9/12 x-3/18=2/18 x-24/40=15/40
x=9/12-7/12 x=5/18 x=1
x= 2/12=1/6
г)x+5/24=7/12
x+5/24=7/12*2
x=9/24= 3/8
№992
4) 28/40-10/75= 7/10-2/15=21-4/30=17/30
5) 12/27+14/21=4/9+2/3= 4+6/9=10/9
6) 14/24- 15/40= 7/12-3/8=14-9/24= 5/24
№993
(7/15-1/6)+2/5=(14/30-5/30)+2/5= 9/30+2/5= 9+12/30= 7/10
(3/8-1/9)+25/36=(27/72-8/72)+50/72=19+50/72=69/72=23/24
(8/9-5/6)+2/3=(16/18-15/18)+12/18= 13/18
Как- то так
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Thanks 1
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Answers & Comments
а)x+7/12=3/4 б)x-1/6=1/9 в)x-3/5=3/8
x+7/12=3/4*3 x-1/6*3=1/9*2 x-3/5*8=3/8*5
x+7/12=9/12 x-3/18=2/18 x-24/40=15/40
x=9/12-7/12 x=5/18 x=1
x= 2/12=1/6
г)x+5/24=7/12
x+5/24=7/12*2
x=9/24= 3/8
№992
4) 28/40-10/75= 7/10-2/15=21-4/30=17/30
5) 12/27+14/21=4/9+2/3= 4+6/9=10/9
6) 14/24- 15/40= 7/12-3/8=14-9/24= 5/24
№993
(7/15-1/6)+2/5=(14/30-5/30)+2/5= 9/30+2/5= 9+12/30= 7/10
(3/8-1/9)+25/36=(27/72-8/72)+50/72=19+50/72=69/72=23/24
(8/9-5/6)+2/3=(16/18-15/18)+12/18= 13/18
Как- то так