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Answer:
1. [tex]\frac{5}{13} * \frac{39}{10} = \frac{195}{130}[/tex] [tex]=\frac{3}{2}[/tex]
so 1st part = [tex]\frac{3}{2}[/tex]
2. [tex]\frac{7}{4}[/tex] ÷ [tex]\frac{21}{1}[/tex]
[tex]\frac{7}{4} * \frac{1}{21}[/tex] = [tex]\frac{7}{84}[/tex] = [tex]\frac{1}{12}[/tex]
so 2nd part = [tex]\frac{1}{12}[/tex]
3. [tex]2\frac{1}{5} = \frac{11}{5}[/tex]
[tex]3\frac{1}{2} = \frac{7}{2}[/tex]
[tex]\frac{11}{5} *\frac{7}{2} = \frac{77}{10}[/tex]
so 3rd part = [tex]\frac{77}{10}[/tex]
4. [tex]3\frac{1}{2}[/tex] ÷ [tex]\frac{3}{5}[/tex]
[tex]\frac{7}{2} *\frac{5}{3} = \frac{35}{6}[/tex]
so fourth part = [tex]\frac{35}{6}[/tex]
5. [tex]\frac{1}{5} *\frac{15}{28}[/tex] [tex]= \frac{15}{140}[/tex] [tex]= \frac{3}{28}[/tex]
so fifth part = [tex]\frac{3}{28}[/tex]
6. [tex]\frac{9}{16}[/tex] ÷ [tex]\frac{27}{8}[/tex]
[tex]\frac{9}{16} *\frac{8}{27} =\frac{72}{432}[/tex] [tex]= \frac{1}{6}[/tex]
so 6th part = [tex]\frac{1}{6}[/tex]
7. [tex]\frac{3}{5} * 25[/tex]
15 is correct
8. [tex]\frac{15}{1}[/tex]÷ [tex]\frac{5}{7}[/tex]
[tex]\frac{15}{1}[/tex] [tex]* \frac{7}{5} = \frac{105}{5}[/tex] [tex]= 21[/tex]
so 8th part = 21
9. [tex]1\frac{2}{3} = \frac{5}{3}[/tex]
[tex]3\frac{1}{5}[/tex] [tex]= \frac{16}{5}[/tex]
[tex]\frac{5}{3}[/tex] ÷ [tex]\frac{16}{5}[/tex]
[tex]\frac{5}{3} * \frac{5}{16} = \frac{25}{48}[/tex]
so 9th part = [tex]\frac{25}{48}[/tex]
10. [tex]\frac{3}{5} *\frac{7}{8} =\frac{21}{40}[/tex]
so 10th part = [tex]\frac{21}{40}[/tex]
Step-by-step explanation: