Answer:
[tex]4 \frac{5}{6} .[/tex]
Step-by-step explanation:
[tex]if \: the \: right \: quetion \: is : \\ 7 \frac{8}{15} \: - 2 \: \frac{7}{10} .[/tex]
then, the answer is as follows:
[tex]7 \frac{8}{15} \: - 2 \: \frac{7}{10} \: = \\ \: \frac{(7 \times 15 + 8)}{15} - \frac{(2 \times 10 + 7)}{10} = \\ [/tex]
[tex]\frac{(133 \times 10) - (2 7\times 15)}{150} = \frac{725}{150} = \\ \frac{29}{6} = 4 \frac{5}{6} .[/tex]
