I believe B . Because it seems equivalent
There's an app called photo math that can really help you with your problem
It would be 1
pemdas
(p) 1+2 = 3
(m) 2(3) = 6
(d) 6 / 6 = 1
1/10 and 1/20 are the
two fractions where the least common denominator is 20 but the product of the denominators is not 20
