Kak tolong jawab ini plisss

Kak tolong jawab ini plisss

Jawaban:

$17. frac{7}{8} - frac{2}{5} + frac{5}{10} \ frac{7}{8} - frac{2}{5} + frac{1}{2} \ frac{35 - 16 + 20}{40} \ frac{39}{40}$

$18. frac{8}{3} + frac{4}{10} - frac{1}{6} \ frac{80 + 12 - 5}{30} \ frac{88}{30} = 2 frac{28}{30} = 2 frac{14}{15}$

$19. frac{75}{100} times frac{10}{2} - frac{1}{6} = frac{75}{20} - frac{1}{6} = frac{450 - 20}{120} = frac{430}{20} = 21 frac{10}{20} = 21 frac{1}{2}$