EXPLANATION
M18. What is the value of 1/4 + 2/5?
a) 17/20
b) 13/10
c) 13/20
d) 11/20
ANSWER: c) 13/20
EXPLANATION:
To find the value of 1/4 + 2/5, we need to find a common denominator for the fractions. The common denominator for 4 and 5 is 20.
Now, let's convert the fractions to have a denominator of 20:
1/4 = 5/20 (multiply numerator and denominator by 5)
2/5 = 8/20 (multiply numerator and denominator by 4)
Now, we can add the fractions with the same denominator:
5/20 + 8/20 = (5 + 8)/20 = 13/20
Therefore, the value of 1/4 + 2/5 is 13/20.
