Question

can you help me please ​

Answer 1

Answer:

option (b)

Step-by-step explanation:

$\frac{4}{7} + \frac{ - 4}{9} + \frac{3}{7} + \frac{ - 13}{9}$

By regrouping like terms,

$( \frac{4}{7} + \frac{3}{7} ) + ( \frac{ - 4}{9} - \frac{13}{9} )$

$\frac{7}{7} + \frac{ - 17}{9}$

LCM of 7,9= 63

$\frac{7}{7} \times \frac{9}{9} = \frac{63}{63} \\ \frac{ - 17}{9} \times \frac{7}{7} = \frac{ - 119}{63}$

$\frac{ - 119 + 63}{63} \\ = \geqslant \frac{ - 8}{9}$