Найдите значение выражения:6-2,2:(6 11/30-4 7/20)помогите!. Created by luhneva. matematika-ru

20)помогите!...

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Найдите значение выражения:
6-2,2:(6 11/30-4 7/20)
помогите!

Answers & Comments

evvoronina1 = 6 - 2,2:(191/30-78/40)=
=6-2,2:(7640/1200-2340/1200)=
=6-2,2:(53/12)=
=6-2,2•(12/53)=
=6-(22/10)•(12/53)=
=6-132/53=
=(318/53)-(132/53)=186/53=3 целых 27/53

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