Respuesta :

-1/2 * -1/2 = 1/4. 1/4 + 1/5 LCD is 20, so 1/4 * 5/5 and 1/5 * 4/4 = 5/20 + 4/20 = 9/20
0.45 or 9/20
I put it in a graphing calculator and got this