Final answer:
To calculate the sum of 7/100 and 4/10, make the denominators the same and then add the numerators, resulting in 47/100.
Step-by-step explanation:
The equation that can be used to find the sum of 7/100 and 4/10 is simply the addition of these two fractions. To add fractions, the denominators must be the same. We express 4/10 with a denominator of 100 to match 7/100, which gives us 40/100 (since 4/10 is equal to 40/100). Now, we can add the two fractions: 7/100 + 40/100.
The sum is 47/100, as the numerators add up and the denominator remains the same when adding fractions with like denominators.