answer:
or 1 
step-by-step explanation:
a common denominator between 3 and 5 is 15
first to get our denominator in the fraction
to 15 we need to multiply by 5 so 2 × 5 = 10 and 3 × 5 = 15
this makes our new fraction 
now we need to get our denominator in the fraction
to 15 so we need to multiply by 3 so 4 × 3 = 12 and 5 × 3 = 12
this makes our new fraction 
our new equation with common denominators is now
+
= coming out to be 
to make this into a mixed fraction we know 22 only goes into 15 once with 7 left over so our mixed fraction is 1 