Question

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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. $1 \frac{5}{7} + \frac{6}{7 } = \frac{12}{7} + \frac{6}{7} = \frac{18}{7}$