Answer:
15/16 + 1/6
= 15 · 3/16 · 3 + 1 · 8/6 · 8
= 45/48 + 8/48
= 45 + 8 /48
= 53/48
For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of both denominators - LCM(16, 6) = 48. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 16 × 6 = 96. In the next intermediate step, the fraction result cannot be further simplified by canceling.
(No option is right according to my answer)