9514 1404 393
Answer:
7 2/3
Step-by-step explanation:
The even number of minus signs cancel, so the problem is an addition problem.
5 2/5 +2 4/15
The fractions can be added only when they have a common denominator. 15 works for that purpose.
5 6/15 +2 4/15 = (5 +2) +(6/15 +4/15) = 7 10/15
The fraction 10/15 can be reduced by removing a common factor of 5 from numerator and denominator.
= 7 2/3
