Автор - bataevaliza

Выполните действие и сократите результат. 1) 5/18 + 7/18= 2) 5/12+4/12= 3) 2 15/56+ 4 13/56= 4) 7 47/48-3 17/48

Ответ

Автор - denic190499
 1) frac{5}{18} + frac{7}{18} = frac{12}{18} = frac{2}{3}  

2)  frac{5}{12} + frac{4}{12}= frac{9}{12}= frac{3}{4}

3) frac{15x}{56} +4 frac{13}{56} = frac{15}{56} + frac{237}{56} = frac{252}{56} =4 frac{28}{56} =4 frac{1}{2}

4) 4 frac{47}{48}-3 frac{17}{48}= frac{383}{48} - frac{161}{48}= frac{222}{48}= 4 frac{30}{48}= 4 frac{5}{8}

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