2/3 - 1/5
find the common denominator for the fractions which is 15.
Mutiply by 5 for 2/3.
(2)(5)=10
(3)(5)= 15
2/3= 10/15
Mutiply by 3 for 1/5
(1)(3)= 3
(5)(3)= 15
1/5= 3/15
10/15-3/15
Answer: 7/15
