Answer:
3/15
10/15
3 + 10 = 13
13/15
Multiply the numerator and the denominator of a fraction to the denominator of the other fraction.
Example:
The fraction 1/5
The denominator of the other fraction: 3
Multiply the numerator: 1*3 = 3
Multiply the denominator: 5*3 = 15
Combine: 3/15
