pa help po plss thx u po

Answer:
[tex]1. \frac{10}{8} \\ 2. \frac{9}{7} \\ 3.1 \\ 4. \frac{21}{9} \times \frac{9}{21} \\ 5. \frac{21}{5} \times \frac{5}{21} [/tex]
Step-by-step explanation:
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