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Sagot :

Answer:

7. 21/8 lowest term- 2 5/8

8. 4/5

9. - 45/4 lowest term 11 1/4

10. 13.84 fraction form- 346/25 lowest term in fraction 13 21/25

11. -1

12. 9

Step-by-step explanation:

too complicated to type the steps

Answer:

7. 2

8.

9. - 9/16

10. 13.84

11. -1

12. 9

Step-by-step explanation:

7.

[tex]10 - 7 \: \frac{3}{8} \\ = 9 \: \frac{8}{8} - 7 \: \frac{3}{8} \\ = 2 \: \frac{5}{8} [/tex]

8.

[tex] \frac{5}{10} + \frac{6}{20} \\ = \frac{10}{20} + \frac{6}{20} \\ = \frac{16}{20} \\ = \frac{4}{5} [/tex]

9.

[tex] - \frac{3}{4} \times \frac{15}{20} \\ = - \frac{45}{80} \\ = - \frac{9}{16} [/tex]

10.

[tex]41.52 \div 3 \\ = 13.84[/tex]

11.

[tex] \frac{4}{20} \div - \frac{1}{5} \\ = \frac{4}{20} \times - \frac{5}{1} \\ = \frac{4}{4} \times - \frac{1}{1} \\ = - \frac{4}{4} \\ = - 1[/tex]

12.

[tex]3 \div \frac{4}{12} \\ = 3 \times \frac{12}{4} \\ = \frac{36}{4} \\ = 9[/tex]

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