Complex sentence: Pakistani Australians tended to be urban, well-educated, and professional; many of them had come from cities like Karachi, Lahore, Rawalpindi, Islamabad and Peshawar, and were familiar with Western culture and ways of living.
Split into simpler sentences: Pakistani Australians tended to be urban, well-educated, and professional. Many of them had come from cities like Karachi, Lahore, Rawalpindi, Islamabad and Peshawar, and were familiar with Western culture and ways of living.