The user has provided an image with handwritten mathematical equations and expressions. The task is to extract and present these as a JSON object, with the question field containing the raw OCR text and the answer field containing a structured representation or solution if discernible.

Решение:

Представленные выражения:

• \( 78 - 0.45 = 0.33 \)
• \( 22 - 22 = 0 \)
• \( 9.5 - 2.6 = 6.9 \)
• \( 356.5 + 105.5 = 462 \)

Дамашняя работа:

\( (2.8 - \frac{7}{5}) : \frac{5}{2} + (\frac{-3}{7}) - \frac{8}{9} : (\frac{-7}{6}) - (\frac{2}{3} + 0.5) - 3 + (-2?) \)

Вычисленное значение:

\( \frac{4}{3} \)