Предмет: Математика, автор: valerapoddimov

Найдите сумму 1.23+4.56+7.89 (Ответ запишите дробью)

Ответы

Автор ответа: spasibo3pajbrh

на фото показано сложение столбиком
сначала 1,23 +4,56 и к этой сумме прибавляем 7,89

результат 13,68

100=2²5²
68=2²17

$13.68 = 13 \frac{68}{100} = 13\frac{17}{25}$
Ответ
$13 \frac{17}{25} = \frac{342}{25}$

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