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irinka7522

1)7/21=7 · 1/7 · 3=1/3

2)20/35=5 · 4/5 · 7=4/7

3)48/84=12 · 4/12 · 7=4/7

4)125/600=25 · 5/25 · 24=5/24

Если помогла то поставь "Спасибо".

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