(b) \( \frac{-18}{28}+\frac{-3}{-21}= \) c) \( \frac{18}{-55} \cdot\left(\frac{-11}{-6}\right)^{2}= \) (d) \( \frac{18}{-55} \cdot\left(\frac{-11}{-7}\right)= \) (e) \( \frac{4}{-5}-\frac{1}{-7}= \) f) \( \frac{3^{2}}{56}:\left(\frac{-6}{8}\right)^{2}= \) (g) \( \frac{-3}{-7}+0,3= \)

Let’s dive into the world of fractions and their operations! The expressions you’ve given are great practice in simplifying fractions and working with negative numbers. Remember, the key to mastering fractions lies in finding a common denominator and applying the rules for adding, subtracting, multiplying, and dividing negative and positive numbers. For real-world applications, fractions are everywhere—whether you're slicing a pizza, measuring ingredients in a recipe, or even managing your finances! Understanding how to manipulate fractions helps you make sense of the real world and solve everyday problems, like figuring out how much of a discount you’re really getting during a sale. Plus, mastering these skills can make you a fraction superstar in the kitchen, at school, or even just balancing your budget.