Question

памагите пажэ памагите памагите​

Answer 1

№1

1) $\frac{1}{12} +\frac{7}{12} = \frac{1+7}{12} =\frac{8}{12} =\frac{2}{3}$

2) $\frac{5}{11} +\frac{6}{11} =\frac{5+6}{11} =\frac{11}{11} =1$

3) $\frac{2}{11}+ \frac{3}{11}+ \frac{6}{11} = \frac{2+3+6}{11} =\frac{11}{11} =1$

4) $\frac{3}{20} + \frac{9}{20}+\frac{1}{20} = \frac{3+9+1}{20}=\frac{13}{20}$

№2

1) $\frac{5}{6} +\frac{2}{9} = \frac{15+4}{18} = \frac{19}{18} =1\frac{1}{18}$

2) $\frac{1}{4}+\frac{1}{5} = \frac{5+4}{20} =\frac{9}{20}$

3) $\frac{3}{7} +\frac{1}{9} = \frac{27+7}{63} = \frac{34}{63}$

4) $\frac{3}{10} + \frac{1}{8} = \frac{12+5}{40} =\frac{17}{40}$