c) 50 min
2. Efectúa las siguientes operaciones.
a) $\left(-\frac{15}{23}\right)+\left(-\frac{19}{23}\right)=$
b) $\left(\frac{3}{4}+\frac{5}{3}\right)+\left(7+\frac{1}{5}\right)=$
c) $\left(-\frac{2}{5}+4\right)-\left(-\frac{1}{3}+1\right)=$
d) $\left(-\frac{3}{4}+\frac{5}{3}\right)-\left(\frac{5}{3}-\frac{3}{2}\right)=$
e) $\frac{3}{4}+\frac{6}{5}-\frac{1}{3}=$
f) $\frac{1}{12}-\frac{4}{3}+\frac{7}{6}=$
g) $\frac{9}{11}-\left(\frac{5}{22}-6\right)=$
h) $\frac{3}{7}-\left(\frac{4}{21}-2+\frac{1}{14}\right)=$
i) $\frac{6}{13}-\frac{1}{5}-\left(8-1 \frac{1}{26}\right)=$
j) $-\frac{1}{2}-\left(\frac{7}{20}-\frac{9}{10}\right)+\frac{11}{5}=$
k) $\frac{12}{3}-\frac{5}{9}-\left(\frac{7}{18}-3\right)+\frac{7}{27}=$
l) $-16+3 \frac{3}{4}-2 \frac{1}{2}-\left(\frac{5}{16}-1\right)=$

Fractions are used in everyday life, such as when cooking, baking, or measuring ingredients. Understanding how to add and subtract fractions is essential for accurate measurements and successful outcomes in these activities.
Explanation

Problem Analysis We need to evaluate the given expressions involving addition and subtraction of fractions. Let's start with subproblem a).

Examples
Fractions are used in everyday life, such as when cooking, baking, or measuring ingredients. Understanding how to add and subtract fractions is essential for accurate measurements and successful outcomes in these activities.

Answered by GinnyAnswer | 2025-07-03

The operations on fractions involve finding common denominators, adding and subtracting numerators, and simplifying where possible. Each problem entails systematic fraction manipulation to arrive at the final result. Using step-by-step calculations ensures accuracy in these fractional operations.
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Answered by Anonymous | 2025-07-04