Answer:
7. YES
8. NO
9. NO
10. YES
Step-by-step explanation:
just check it by using cross multiplication.
HOW?
[tex]7.) \: \frac{6}{7} = \frac{24}{28} \\ 6 \times 28 = 168 \\ 24 \times 7 = 168[/tex]
[tex]8.) \: \frac{2}{5} = \frac{4}{12} \\ 2 \times 12 = 24 \\ 4 \times 5 = 20[/tex]
[tex]9.) \: \frac{15}{20} = \frac{5}{6} \\ 15 \times 6 = 90 \\ 5 \times 20 = 100[/tex]
[tex]10.) \: \frac{28}{42} = \frac{2}{3} \\ 28 \times 3 = 84 \\ 2 \times 42 = 84[/tex]
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