Respuesta :

142% is the answer that you are looking for
1 21/50 as a percent would be 1425. 
1st you would add 1 to 21/50: 50/50+21/50
2nd: simplify: 71/50
3rd: divide: 71/50=1.42
4th: move decimal so that it's a percent: 1.42=142%

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