Respuesta :

texaschic101
1/5 + 1/4.....lowest common denominator is 20
4/20 + 5/20 = 9/20 <==
The answer is 0.45 Change to a common denominator.
1/5 and 1/4 can be changed to 4/20 and 5/20
However, the only values between 4 and 5 are fractions.
for example: 4.5/20 = 9/40
This would require further simplifying.