Answer:
9. [tex]\frac{10}{15} + \frac{9}{15}[/tex]
10. a) [tex]\frac{12}{18} +\frac{3}{18}[/tex] [tex]=\frac{15}{18}[/tex] b) [tex]\frac{6}{10} + \frac{5}{10}[/tex] [tex]=\frac{11}{10} = 1\frac{1}{10}[/tex] c) [tex]\frac{7}{14} - \frac{6}{14}[/tex] [tex]=\frac{1}{14}[/tex] d) not so sure
11. a) Yes they are all correct because the answers are all either simplified or a mixed fraction. b) [tex]1\frac{7}{12}[/tex]
12. a) [tex]\frac{14}{21} + \frac{9}{21} = \frac{23}{21} = 1\frac{2}{21}[/tex] b) [tex]\frac{21}{35} + \frac{20}{35} = \frac{41}{35} = 1\frac{6}{35}[/tex] c) [tex]\frac{27}{36} +\frac{28}{36} = \frac{55}{36} = 1\frac{19}{36}[/tex]
d) [tex]\frac{9}{12} - \frac{4}{12} = \frac{13}{12} =1\frac{1}{12}[/tex] e) [tex]\frac{15}{20} -\frac{8}{20} =\frac{23}{20} = 1\frac{3}{20}[/tex] f) [tex]\frac{30}{48} -\frac{8}{48} =\frac{38}{48} = \frac{19}{24}[/tex]
idk where Q13 & Q14 is
15. [tex]\frac{1}{4}+ \frac{2}{3} = \frac{3}{12} +\frac{8}{12}=\frac{11}{12}[/tex]
16. a) [tex]\frac{7}{8} + \frac{7}{8} = \frac{14}{8} =1\frac{6}{8}[/tex] b) [tex]\frac{5}{6} - \frac{1}{12} = \frac{10}{12} -\frac{1}{12} = \frac{9}{12}=\frac{3}{4}[/tex]
17. [tex]A =\frac{11}{20} B=\frac{8}{15} C=\frac{19}{30} D=\frac{13}{18}[/tex] so A was the closest to [tex]\frac{1}{2}[/tex] by [tex]\frac{1}{20}[/tex]
18.[tex]\frac{4}{12} +\frac{3}{12} +\frac{6}{12} = \frac{13}{12} =1\frac{1}{12}[/tex]
Those are all the questions that I can see
