Question

Помогите пожалуйста

Answer 1

2. $a) frac{9}{14} + frac{3}{14} = frac{9 + 3}{14} = frac{12}{14} = frac{6}{7 }$
3. $b) frac{21}{50} + frac{29}{50} = frac{21 + 29}{50 } = frac{50}{50} = 1$
4. д
5. $d)6 frac{2}{3} - 1 frac{1}{3} = (6 - 1) + ( frac{2}{3} - frac{1}{3} = 5 + frac{1}{3}$
6. $u)3 frac{1}{5} - frac{3}{5} = frac{16}{5} - frac{8}{5} = frac{8}{5}$
7. $e)18 frac{5}{11} - 7 frac{1}{11} = (18 - 7) + ( frac{5}{11} - frac{1}{11} ) = 11 + frac{4}{11}$
8. $k)2 frac{4}{9} - 1 frac{7}{9} = frac{22}{9} - frac{16}{9} = frac{2}{3}$
9. в)
10. $2 + frac{4}{17} = frac{34 + 4}{17} = frac{38}{17}$
11. г
12. $17 + frac{19}{13} = frac{221 + 9}{13} = frac{230}{13}$
13. ж
14. $4 - frac{3}{5} = frac{20 - 3}{5} = frac{17}{5}$
15. з
16. $15 - frac{6}{7} = frac{105 - 6}{7} = frac{99}{7}$
17. л
18. $1 frac{5}{7} + frac{6}{7 } = frac{12}{7} + frac{6}{7} = frac{18}{7}$