Subtraction in fractions with whole numbers and mixed numbers are tricky

1st step is find the LCD in the denominator and multiply the numerator of how many times you did the LCD.

2nd step is to subtract if the minuend numerator does not satisfy subtrahend numerator then subtract 1 on the whole then multiply it on the denominator and add it on the addition.

so if doing this the right answer should be D. 1 5/6