Question

for x=4/9 y= -8/14 , z = 10/-28 ,show x - (y+z) + (x-y) -z​

Answer 1

Answer:

$x - (y + z) + (x - y) - z \\ \frac{4}{9} - ( \frac{ - 8}{14} + \frac{ - 10}{28} ) + ( \frac{4}{9} - \frac{ - 8}{14} ) - \frac{ - 10}{28} \\ \frac{4}{9} - ( \frac{ - 16}{28} + \frac{ - 10}{28} ) + ( \frac{56}{126} - \frac{ - 72}{126} ) + \frac{10}{28} \\ \frac{4}{9} - ( \frac{ - 26}{28} ) + ( \frac{ - 16}{126} ) + \frac{5}{14} \\ \frac{4}{9} + \frac{26}{28} - \frac{16}{126} + \frac{5}{14} \\ \frac{4}{9} + \frac{13}{14} - \frac{8}{63} + \frac{5}{14} \\ \frac{4}{9} - \frac{8}{63} + \frac{13 + 5}{14} \\ \frac{4}{9} - \frac{8}{63} + \frac{18}{14 } \\ \frac{28 - 8}{63} + \frac{9}{7} \\ \frac{20}{63} + \frac{9}{7} \\ \frac{20 + 81}{63} \\ \frac{101}{63}$