1) \frac{3}{4}^{2}=\frac{9}{16}
2) \frac{7}{16}+\frac{9}{16}=\frac{16}{16}=1
3) 4,8:1=4,8
Ответ: 4,8
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1) \frac{3}{4}^{2}=\frac{9}{16}
2) \frac{7}{16}+\frac{9}{16}=\frac{16}{16}=1
3) 4,8:1=4,8
Ответ: 4,8