Tolong di jawab yaaaaaaa!

Tolong di jawab yaaaaaaa!

Penjelasan dengan langkah-langkah:

$a. frac{1}{3} + frac{27}{25} div frac{9}{5} \ = frac{1}{3} + ( frac{27}{25} div frac{9}{5} ) \ = frac{1}{3} + ( frac{27}{25} times frac{5}{9} ) \ = frac{1}{3} + frac{135}{225} \ = frac{75}{225} + frac{135}{225} = frac{210}{225} = frac{42}{45}$

Jawaban:

$frac{1}{3} + frac{27}{25} div frac{9}{5} = frac{1}{3} + frac{3}{5} = frac{5 + 9}{15} = frac{14}{15} \ \ 2 frac{2}{3} times (1 frac{1}{2} + frac{4}{5} ) = frac{8}{3} times frac{(3 times 5) + (4 times 2)}{10} = frac{8}{3} times frac{23}{10} = frac{92}{15} = 6 frac{2}{15} \ \ frac{1}{2} times 1 frac{1}{3} + frac{2}{9} div frac{10}{6} = ( frac{1}{2} times frac{4}{3} ) + ( frac{2}{9} times frac{6}{10} ) = frac{4}{6} + frac{12}{90} = frac{10 + 2}{15} = frac{12}{15} \ \ 1 frac{2}{3} div 2 frac{1}{2} - frac{3}{5} times 1 frac{2}{7} = (frac{5}{3} times frac{2}{5} ) - ( frac{3}{5} times frac{9}{7} ) = frac{10}{15} - frac{27}{35} = frac{70 - 81}{105} = - frac{11}{105}$

#backtoschool2019