Question

1\7 *-7\8*21\78 -12\5 solve rational number

Answer 1

Step-by-step explanation:

$\huge \: \frac{1}{7} \times \frac{ - 7}{8} \times \frac{21}{78} \times \frac{ - 12}{ \: 5}$

$\huge \frac{1}{ \cancel{7}} \times \frac{ \cancel{ - 7}}{8} \times \frac{21}{ \cancel{78}} \times \frac{ \cancel{ - 12}}{5}$

$\huge \frac{ - 1}{8} \times \frac{21}{26} \times \frac{4}{5}$

$\huge \frac{ - 1}{ \cancel{8}} \times \frac{21}{26} \times \frac{ \cancel{4}}{5}$

$\huge \frac{ - 1}{2} \times \frac{21}{26} \times \frac{1}{5}$

$\huge \frac{ - 21}{260}$