1) 5 - 3 2/7 = 4 5/72) -3 1/2 * (-1 3/7) = 4 15/143) -1 2/3 + 5/6 = -1 3/24) (-7)^2 + (-7)^3 = 49 - 343 = -294
1) 5 - 3 2/7 = 4 5/7
2) -3 1/2 * (-1 3/7) = 4 15/14
3) -1 2/3 + 5/6 = -1 3/2
4) (-7)^2 + (-7)^3 = 49 - 343 = -294