1)
15 - 7 2/3 = 14 3/3 - 7 2/3 = 7 1/3,
2)
14 5/7 + 11 = 25 5/7,
3)
8 * (-3 1/4) = 8 * (-13/4) = -2 * 13 = -26,
4)
3 3/4 : 5/8 = 15/4 * 8/5 = 3 * 2 = 6
1)
15 - 7 2/3 = 14 3/3 - 7 2/3 = 7 1/3,
2)
14 5/7 + 11 = 25 5/7,
3)
8 * (-3 1/4) = 8 * (-13/4) = -2 * 13 = -26,
4)
3 3/4 : 5/8 = 15/4 * 8/5 = 3 * 2 = 6