Question

2 by 5 + (-3 by 4)+(-7 by 20) + (9 by 10 )

Answer 1

Answer:

2/5+(-3/4)+(-7/20)+(9/10)

2/5-3/4-7/20+9/10

4/20=1/5

Answer 2

Answer:

0.2 = this is the answer