Tolong dong aku ga ngerti MTK nya,di jawab+pake caranya ya makasih, supaya aku sekalian belajar, makasihhh (・∀・)

Tolong dong aku ga ngerti MTK nya,di jawab+pake caranya ya makasih, supaya aku sekalian belajar, makasihhh (・∀・)

$1. large{bold{frac{12}{24}+frac{21}{24}=frac{33}{24}=1frac{9}{24}=1frac{3}{8}}}$

$2. bold{2frac{2}{3}+frac{5}{12}=frac{8}{3}+frac{5}{12}=frac{32+5}{12}=frac{37}{12}=3frac{1}{12}}$

$3. large{bold{frac{5}{9}-frac{11}{27}=frac{15-11}{27}=frac{4}{27}}}$

$4. 9frac{5}{6}-4frac{1}{4}=frac{61}{6}-frac{17}{4}\=frac{122-51}{12}=frac{71}{12}=5frac{11}{12}$

$5. large{bold{frac{1}{3}×frac{6}{7}=frac{6}{21}=frac{2}{7}}}$

$6. 1frac{1}{8}×2frac{2}{5}=frac{9}{8}×frac{12}{5}\=frac{72}{40}=1frac{32}{40}=frac{4}{5}$

$7. large{bold{frac{5}{8}:frac{3}{7}=frac{5}{8}×frac{7}{3}=frac{35}{24}=1frac{11}{24}}}$

$8. large{bold{3frac{1}{2}:frac{2}{5}=frac{7}{2}×frac{5}{2}=frac{35}{10}=3frac{5}{10}=3frac{1}{2}}}$

$9. 15%:12%=frac{15}{100}×frac{100}{12}=frac{1.500}{1.200}\=1frac{300}{1.200}=1frac{1}{4}$

$10. large{bold{30%:frac{3}{4}=frac{30}{100}×frac{4}{3}=frac{120}{300}=frac{2}{5}}}$