Предмет: Математика, автор: Ttt5ffg

Брату 26целых 8/12 лет, когда родилась дочь,и 30целых 7/12 лет,когда родился сын.Сколько лет сыну ,если дочери 7целых 4/12 лет?

Ответы

Автор ответа: MisterNik2611
0
Отцу было 26 целых восемь двенадцатых лет когда родилась дочь и 30 целых семь двенадцатых лет когда родился сын сколько лет сыну если дочери 7 целых четыре двенадцатых лет?

1.26 8/12+7 4/12=33 12/12=34(года)-отцу сейчас
2.34-30 7/12=4-7/12=(3+1)-7/12=3+(1-7/12)=3 5/12(л)-сейчас сыну

Ответ:сыну сейчас 3 5/12 лет или 3 года и 5 месяцев.
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