Respuesta :

andriafierros

Answer:

1  7/10

Step-by-step explanation:

4 1/4 = 17/4

2 11/20 = 51/20

common denominator is 20

4 times 5 is 20 so use 17 times 5 = 85

85 - 51 = 34

34/20 = 1 14/20

simplified is 1 7/10

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