Предмет: Математика, автор: rahmanovao

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Автор ответа: alesyaperova

$1)1 \frac{3}{4} - \frac{1}{6} = 1 \frac{18}{24} - \frac{4}{24} = 1 \frac{14}{24} \\ = 1 \frac{7}{12}$
$2)1 \frac{1}{5} + 2 \frac{2}{3} = 1 \frac{3}{15} + 2 \frac{10}{15} = \\ 3 \frac{13}{15}$
$3)3 \frac{13}{15} + \frac{1}{6} = 3 \frac{26}{30} + \frac{5}{30} = 3 \frac{31}{30} \\ = 4 \frac{1}{30}$
$4)1 \frac{7}{12} \times 4 \frac{1}{30} = \frac{19}{12} \times \frac{121}{30} = \\ \frac{2229}{360 } = 6 \frac{69}{360} = 6 \frac{33}{130}$

rahmanovao: спасибо большое

rahmanovao: очень помогла

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