Simple calculation 2 and 3 / 4 minus (20% + 1 / 3) * 4.5

2 and 3 / 4 minus (20% + 1 / 3) * 4.5
= 2.75 - (1 / 5 + 1 / 3) * 4.5
= 2.75 - (1 / 5) * 4.5 + (1 / 3) * 4.5
＝2.75－0.9+1.5
＝2.75+0.6
＝3.35

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