выполните действия: 78 33/38+5/38-7 29/30-42-28 1/3+1 7/15+4 1/3=

[tex]78 \frac{33}{38} + \frac{5}{38} - 7 \frac{29}{30} - 42 - 28 \frac{1}{3} + 1 \frac{7}{15} + 4 \frac{1}{3} \\ \\ 78 \frac{33}{38} + \frac{5}{38} = 78 \frac{33+5}{38} = 78 \frac{38}{38} = 79 \\ \\ 79 - 7 \frac{29}{30} = 72 \frac{29}{30} \\ \\ 72 \frac{29}{30} - 42 = 30 \frac{29}{30} \\ \\ 30 \frac{29}{30} - 28 \frac{1}{3} = 2 \frac{29-10}{30} = 2 \frac{19}{30} \\ \\ 2 \frac{19}{30} + 1 \frac{7}{15} = 3 \frac{19+14}{30} = 3 \frac{33}{30} = 4 \frac{1}{10} [/tex]
[tex]4 \frac{1}{10} + 4 \frac{1}{3} = 8 \frac{3+10}{30} = 8 \frac{1+1}{1} = 8 \frac{2}{1} = 10[/tex]