Kerjakan penjumlahan dan pengurangan pecahan biasa di gambar ini dengan benar!

(Yang no.1-5 penjumlahan, dan yang no.6-10 pengurangan.)

Kerjakan penjumlahan dan pengurangan pecahan biasa di gambar ini dengan benar!

$1. : frac{6}{10} + frac{2}{8} = frac{24}{40} + frac{10}{40} = frac{34}{40} = frac{17}{20} \ \ 2. : frac{2}{14} + frac{4}{6} = frac{6}{42} + frac{28}{42} = frac{34}{42} = frac{17}{21} \ \ 3. : frac{3}{5} + frac{5}{6} = frac{18}{30} + frac{25}{30} = frac{43}{30} = 1 frac{13}{30} \ \ 4. : frac{3}{4} + frac{5}{8} = frac{6}{8} + frac{5}{8} = frac{11}{8} = 1 frac{3}{8} \ \ 5. : frac{4}{10} + frac{4}{6} = frac{12}{30} + frac{20}{30} = frac{32}{30} = 1 frac{2}{30} = 1 frac{1}{15} \ \ 6. : frac{10}{6} - frac{2}{8} = frac{10}{16} - frac{4}{16} = frac{6}{16} = frac{3}{8} \ \ 7. : frac{6}{7} - frac{3}{5} = frac{30}{35} - frac{18}{35} = frac{12}{30} \ \ 8. : frac{3}{4} - frac{4}{9} = frac{27}{36} - frac{16}{36} = frac{11}{36} \ \ 9. : frac{5}{6} - frac{1}{7} = frac{35}{42} - frac{6}{42} = frac{29}{42} \ \ 10. : frac{7}{8} - frac{2}{7} = frac{49}{56} - frac{16}{56} = frac{33}{53}$