To multiply −2/5 by 3 1/0, we need to convert the mixed number 3 1/0 to an improper fraction.
Starting with 3 1/0, we can see that the whole number part, 3, is equivalent to 3 * 0/0 = 0/0. Adding the fraction part, 1/0, we have:
0/0 + 1/0 = 1/0.
Now we have −2/5 multiplied by 1/0.
Using the property of operations, any number multiplied by 0 is equal to 0. Therefore, 1/0 multiplied by any number will result in 0.
So, the product of −2/5 and 3 1/0 is 0.