1 2/5 + 3/4 - 2 1/4
= 7/5 + 3/4 - 9/4
= 28/20 + 15/20 - 45/20
= (28 + 15 - 45)/20
= -2/20
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1 2/5 + 3/4 - 2 1/4
= 7/5 + 3/4 - 9/4
= 28/20 + 15/20 - 45/20
= (28 + 15 - 45)/20
= -2/20
semoga membantu