Answer:
1 25/ 100
Explanation:
you change the mixed numbers into improper fractions.
3 1/8 : 25/8
1 7/8 : 15/ 8
then you add the numerators or you can cross out the denominator since they both have the same denominator. After you do that you divide the numerator. If you get a decimal you can just add the numerator and keep the denominator 40/ 8. After you do that you would divide and your answer is 5.