Final answer:
The value of 4/10 + 3/100 is 43/100, after converting 4/10 to 40/100 to have a common denominator.
Step-by-step explanation:
To solve the problem of adding two fractions, 4/10 and 3/100, we need to find a common denominator. Since 100 is a multiple of 10, we can use 100 as the common denominator. We convert 4/10 into an equivalent fraction with a denominator of 100 by multiplying both the numerator and the denominator by 10.
Therefore, 4/10 becomes 40/100. Now we can easily add the two fractions:
40/100 + 3/100 = 43/100
So, the value of 4/10 + 3/100 is 43/100, which corresponds to option a.