1) -5/12+3/8 2) 7/15+(-2/5) 3) -1/8+3/5 4) 5/8+(-1/4) 5) 3/5+2/2 6 5/16+(-2/3)

1) -5/12 + 3/8 = -10/24 + 9/24 = -1/24;2) 7/15 + (-2/5) = 7/15 - 2/5 = 7/15 - 6/15 = 1/15;3) -1/8 + 3/5 = 3/5 - 1/8 = 24/40 - 5/40 = 19/40;4) 5/8 + (-1/4) = 5/8 - 1/4 = 5/8 - 2/8 = 3/8;5) 3/5 + 2/2 = 6/10 + 10/10 = 16/10 = 1,6;6) 5/16 + (-2/3) = 5/16 - 2/3 = 15/48 - 32/48 = -17/48.