Every day two sisters eat the same number of gluten-free rice cakes. Susanna eats 4/5 of a rice cake. Melanie eats 2/3 of a rice cake. How many rice cakes do they eat in one day?

1 7/15

Step-by-step explanation:

Step 1, Find a common denominator

Step 2, Make each side have same denominator

Step 3, Add fractions

Step 4, You now have the fraction 22/15

Step 5, 22/15 is equal to 1 7/15