Question

simplify (26/9×3/7)-(13/4×-2/3)​

Answer 1

$( \frac{26}{9} \times \frac{3}{7} ) - ( \frac{13}{4} \times \frac{ - 2}{3} ) \\ \frac{26}{21} - \frac{ - 13}{6} \\ \frac{52 - ( - 91)}{42} \\ = \frac{143}{42}$