Answer:
0.72 or 18/25
Explanation:
Multiply -(-31/50)
0.1 + 31/50
To write 0.1 as a fraction with a common denominator, multiply by 50/50.
0.1*50/50+31/50
Combine 0.1 and 50/50.
0.1+50/50 + 31/50
Combine the numerators over the common denominator.
0.1*50+30/50
Simplify the numerator.
36/50
Cancel the common factor of 36 and 50.
Results are 18/25 and 0.72.
Hope this helps.