1) ( (2/3)^2 + (-6 3/8)) + 6.375 = (4/9 + (-51/8)) + 6.375 = (-61/8 + 4/9) + 6.375 = -477/72 + 32/72 + 6.375 = -445/72 + 6.375 = -59.375
2) 0.52 + (-0.25 + 1.1) = 0.52 - 0.25 + 1.1 = 2.37
3) (1/4)^2 + (-5 3/7) + (-0.0625) = 1/16 - 38/7 - 1/16 = 1/16 - 304/56 - 1/16 = -1887/112 = -16.839285714285715
1) ( (2/3)^2 + (-6 3/8)) + 6.375 = (4/9 + (-51/8)) + 6.375 = (-61/8 + 4/9) + 6.375 = -477/72 + 32/72 + 6.375 = -445/72 + 6.375 = -59.375
2) 0.52 + (-0.25 + 1.1) = 0.52 - 0.25 + 1.1 = 2.37
3) (1/4)^2 + (-5 3/7) + (-0.0625) = 1/16 - 38/7 - 1/16 = 1/16 - 304/56 - 1/16 = -1887/112 = -16.839285714285715