Respuesta :

Only the first ratio
1. 4/10=2/5 , 10/25=2/5 (simplify)
2. 4/11 , 6/13 (cannot be simplified)
3. 4/9 , 9/4=2 1/4
4. 3/5 , 9/25=3/5 (simplify)
The answers are 1 and 4.
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