Question

выполните сложение:-3/5+(-1/5);-2/3+(-3/5);-4/5+(-5/6);-3 1/7+(-13/14);-1 2/5+(-2,8);-1 1/3+(-2,25).

Answer 1

-3/5 + (-1/5) = -4/5
-2/3 + (-3/5) = -19/15 = -1 4/15
-4/5 + (-5/6) = -49/30 = -1 19/30
-3 1/7 + (-13/14) = -3 15/14 = -4 1/14
-1 2/5 + (-2,8) = -1,4 + (-2,8) = -4,2
-1 1/3 + (-2,25) = -1 1/3 + (-2 1/4) = 3 7/12