1 4/5 + (0,48 + 2 1/4) - 30%

1. 14/5 + (0,48 + 2 1/4) - 30%

= 14/5 + (0,48 + 2,25) - 30%

= 14/5 +  3,05 - 30%

= 14/5 + 3 1/20 - 30/100

= 14/5 + 3 1/20 - 3/10

= 56/20 + 3 1/20 - 6/20

= 3 51/20

= 4 31/20

= 5 11/20

= 5,55



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