separate out the equation, multiply nominators and denominators for 1/7 and 1/5 by 5 and 7 since this would give equal denominators.
1/7(5) + 1/5(7) = 5/35 + 7/35 = 12/35
Next, multiply 12/35 times 2 and 1/2 by 35 in order to get the same denominator.
12/35(2) + 1/2(35) = 24/70 + 35/70
= 59/70.
if it’s not correct then i’m sorry but that’s the way I’d solve it