Question

calcule; A) -1/3+(-1) B) 3/4+(-1/2)+(-2/5 C) 2+3+(-4/3)

Answer 1

a) -1/3+(-1)
-1/3-1
mmc(3)
-1/3-3/3
=-4/3

b)3/4+(-1/2)+(-3/5)
3/4-1/2-3/5
mmc(20)
15/20-10/20-12/20
-7/10

c)2+3+(-4/3)
5-4/3
15/3-4/3
11/3