Question

Using rearrangement property find the sum of 2/7+-13/20+-11/14+3/10

Answer 1

Answer:

1. 2/7=0.2857142
2. -13/20=-0.65
3. -11/14=0.7857142
4. 3/10=0.3

0.2857142+-0.65+-0.785142+0.3=-0.85