Предмет: Математика, автор: Darina222032002

помогите решить задачу : старший брат выкрасил 7/10 всего забора это дробь прост не знаю как ее изобразить по другому , а младший брат 1/4 всего забора ,какая часть забора осталась не окрашена помогите срочно!!!!

Ответы

Автор ответа: jekadva

7/10+1/4=(14+5)/20=19/20 часть забора выкрасили братья
1 - 19/20=1/20часть забора осталось не окрашеной

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