Question

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Answer 1

Respuesta:

1.

a. $\frac{12}{7} + \frac{4}{7} +\frac{20}{7} = \frac{36}{7}$

b. $\frac{21}{13} + \frac{14}{13} +\frac{10}{13} = \frac{45}{13}$

c. $\frac{15}{11} + \frac{10}{11} +\frac{21}{11} = \frac{46}{11}$

d. $\frac{1}{7} + \frac{1}{8} = \frac{1}{15}$

e. $\frac{7}{13} + \frac{5}{10} = \frac{7 + 10}{13 + 5} = \frac{17}{18}$

f. $\frac{7}{5} - \frac{1}{3} = \frac{7 * 3}{5 * 1} = \frac{21}{5}$