Answer:

2 4/5 - 1215 = -6061/5  

= -1212 1/5  

= -1212.2

Step-by-step explanation:

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(5, 1) = 5. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 5 × 1 = 5. In the following intermediate step, the fraction result cannot be further simplified by canceling.

In other words - fourteen fifths minus one thousand two hundred fifteen = minus six thousand sixty-one fifths.