Jawaban: B. 1⅕
[tex]2.8 \times \frac{3}{7} = \frac{28}{10} \times \frac{3}{7} \\ = \frac{14}{5} \times \frac{3}{7} \\ = \frac{42}{35} \\ = 1 \frac{7}{35} \\ = 1 \frac{1}{5} [/tex]
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Jawaban: B. 1⅕
[tex]2.8 \times \frac{3}{7} = \frac{28}{10} \times \frac{3}{7} \\ = \frac{14}{5} \times \frac{3}{7} \\ = \frac{42}{35} \\ = 1 \frac{7}{35} \\ = 1 \frac{1}{5} [/tex]