Convert from carreau to tarea

Unit Definition (carreau)
The Carreau is a traditional unit of land area in Haiti equal to approximately 1.29 hectares (3.18 acres). The unit originated as the area of a square 100 pas (Haitian paces) on a side, with the pas being equal to 3.5 pieds (French feet). Foreigners are not allowed to own more than 1 carreau of urban land or 5 carreaux of rural land in Haiti.

Unit Definition (tarea)
The tarea is a traditional unit of land area in the Dominican Republic and some parts of Central America. The tarea is generally equal to 900 square varas, so it is the area of a square 30 varas (about 25.05 meters) on a side. In the Dominican Republic, the tarea equals about 628 square meters or 751 square yards; this is 0.0628 hectare or 0.155 acre. The Spanish word tarea means a task or job, so this unit, like many land area units, originated as the area which could be "worked" in a given time.