решите Пожалуйста! !!. Created by rcopylov2015. matematika-ru

решите Пожалуйста! !!...

misha1mill 2/3=18/27
18/27-4/27=14/27 меньше чем 1

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AdeLiNas5g3 ( я только решила! ) г) 2/3 - 4/27 = 2/27 - 4/27 = 18/27 - 4/27 =14 / 27
ж) 25/7 - 7/5 = 25/35 - 7/35 = 125/35 - 49/35 = 76/35 = 2 (целое) 6/35 (числитель, знаменатель)
в) 2/13 + 3/4 = 2/52 + 3/52 = 8/52 + 39/52 = 47/52
е) 5/13 - 17/52 = 5 /52 - 17/52= 20/52 - 17/52 = 3/52

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