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Dauren1200200
@Dauren1200200
July 2022
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помогите решить 2 примера в дробях [13/18-3/8]-[5/8-1/3] [19/24-4/15]-[7/6-6/15]
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Answers & Comments
karinapavlova6
Точно не уверена но думаю,что так
1)=10/10-4/5=6/5=одна целая одна шестая
1 votes
Thanks 1
11081957vera
1) (13/18-3/8)-(5/8-1/3)=(4*13-3*9/72)-(3*5-1*8/24)=52-27/72- 15-8/24=25/72-7/24=
25-21/72=4/72=1/18
2) (19/24-4/15)-(7/6-6/15)= 19*5-4*8/120 - 7*5-6*2/30=95-32/120-35-12/30=
63/120-23/30 = 63-23*4/120=63-92/120=-29/120
0 votes
Thanks 1
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Answers & Comments
1)=10/10-4/5=6/5=одна целая одна шестая
25-21/72=4/72=1/18
2) (19/24-4/15)-(7/6-6/15)= 19*5-4*8/120 - 7*5-6*2/30=95-32/120-35-12/30=
63/120-23/30 = 63-23*4/120=63-92/120=-29/120