1.

please answer it​

Answer»

Step-by-step EXPLANATION:

3 \frac{4}{7}  + 1 \frac{2}{5}  +  \frac{3}{7}

\frac{25}{7}  +  \frac{7}{5}  +  \frac{3}{7}

\frac{125}{35}  +  \frac{49}{35} +  \frac{15}{35}

\frac{125 + 49 + 15}{35}

\frac{189}{35}

5.4



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