You have to first convert those numbers to decimals. 10 1/2 ft = 10.5 ft, and 12 5/8 ft = 12.625. Then multiply them to get the area, 10.5 ft * 12.625 ft = 132.5625 ft^2, which is represented through writing as a small 2 to the top right of ft. When two numbers with the same unit is multiplied together, the unit becomes "squared", In actual speech, the answer is pronounced as one-hundred-thirty-two-point-five-thousand-and-sixty-hundred-twenty-five-thousandths-feet-squared.
