Explicación paso a paso:
[tex]1) \frac{ - 2}{11} + \frac{ - 9}{11} = \frac{ (- 2 )+ (- 9)}{11} = \frac{ - 11}{ \: \: \: 11} \\ 2) \frac{17}{5} + \frac{ - 19}{5} = \frac{17 + ( - 19)}{5} = \frac{ - 2}{ \: \: \: 5} \\ 3) \frac{ - 5}{8} - \frac{11}{20} = \frac{ - 25 - 22}{40} = \frac{ - 47}{40} \\ 4) \frac{9}{15} - \frac{ - 7}{12} = \frac{9 - ( -7)}{60} = \frac{16}{60} \\ 5) \frac{13}{6} \times \frac{4}{11} = \frac{13 \times 4}{6 \times 11} = \frac{52}{66} \\ 6) \frac{ - 10}{8} \times \frac{ - 12}{20} = \frac{ - 10 \times - 12}{8 \times 20} = \frac{120}{160} \\ 7) \frac{20}{12} \div \frac{25}{30} = \frac{20}{12} \times \frac{30}{25} = \frac{20 \times 30}{12 \times 25} = \frac{600}{300} \\ [/tex]
-25 /32/10/16= -1/1/4
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Verified answer
Explicación paso a paso:
[tex]1) \frac{ - 2}{11} + \frac{ - 9}{11} = \frac{ (- 2 )+ (- 9)}{11} = \frac{ - 11}{ \: \: \: 11} \\ 2) \frac{17}{5} + \frac{ - 19}{5} = \frac{17 + ( - 19)}{5} = \frac{ - 2}{ \: \: \: 5} \\ 3) \frac{ - 5}{8} - \frac{11}{20} = \frac{ - 25 - 22}{40} = \frac{ - 47}{40} \\ 4) \frac{9}{15} - \frac{ - 7}{12} = \frac{9 - ( -7)}{60} = \frac{16}{60} \\ 5) \frac{13}{6} \times \frac{4}{11} = \frac{13 \times 4}{6 \times 11} = \frac{52}{66} \\ 6) \frac{ - 10}{8} \times \frac{ - 12}{20} = \frac{ - 10 \times - 12}{8 \times 20} = \frac{120}{160} \\ 7) \frac{20}{12} \div \frac{25}{30} = \frac{20}{12} \times \frac{30}{25} = \frac{20 \times 30}{12 \times 25} = \frac{600}{300} \\ [/tex]
-25 /32/10/16= -1/1/4