4,25+ 1/11/12 -7/15 пж. Created by dadadadadadada115. matematika-ru

15 пж...

OblivionFire

Ответ:

$4.25 + \frac{ \frac{1}{11} }{12} - \frac{7}{15} = \frac{17}{4} + \frac{1}{132} - \frac{7}{15} = \frac{2805 + 5 - 308}{660} = \frac{417}{110} = 3 \frac{87}{110}$

1 votes Thanks 3

ludmilaksenija2005 может быть там в условии: 1 целая 11/12?. Тогда : 4,25+1 11/12-7/15=4 1/4+1 11/12-7/15=(255+115-28)/60=342/60=5,7

Artsounds

Ответ:

$\\ 4.25 + \frac{ \frac{1}{11} }{12} - \frac{7}{15} = \frac{425}{100} + \frac{1}{11} \div \frac{12}{1} - \frac{7}{15} = \frac{17}{4} + \frac{1}{11} \times \frac{1}{12} - \frac{7}{15} = \frac{17}{4} + \frac{1}{132} - \frac{7}{15} = \frac{17}{4 \times 165} + \frac{1}{132 \times 5} - \frac{7}{44 \times 15} = \frac{660 \div 4 \times 17}{660} + \frac{660 \div 132 \times 1}{660} - \frac{660 \div 15 \times 7}{660} = \frac{165 \times 17}{660} + \frac{5 \times 1}{660} - \frac{44 \times 7}{ 660} = \frac{2805}{660} + \frac{5}{660} - \frac{308}{660} = \frac{}{} \frac{2805 + 5 - 308}{660} = \frac{2502}{660} = \frac{2502 \: | \div 6 }{660 \: | \div 6 } = \frac{417}{110} = 3 \frac{87}{110}$

2 votes Thanks 2

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