What is the value of the expression 2/5+3/7

Step-by-step explanation:

So in order to add these two fractions they need to have the same denominator

In order to make into a fraction with the denominator of 35, the denominator must be multiplied by 7. And whatever is done to the bottom also needs to be done to the top

In order to make into a fraction with the denominator of 35, the denominator must be multiplied by 5. And whatever is done to the bottom also needs to be done to the top

Now that we have two fractions with the same denominator, we can add the fractions by adding their numerators:

-6 is the correct option from the above given options