1.3,5 × 1 2/5= 2.4,3÷ 2 3/5= 3.4 1/2×0,3÷1/4= plis tolong ya pake caranya

1.
[tex]3.5 \times 1 \frac{2}{5} \\ = \frac{35}{10} \times \frac{7}{5} \\ = \frac{7}{10} \times \frac{7}{1} \\ = \frac{49}{10} \\ = 4.9[/tex]
2.
[tex]4.3 \div 2 \frac{3}{5} \\ = \frac{43}{10} \div \frac{13}{5} \\ = \frac{43}{10} \times \frac{5}{13} \\ = \frac{43}{2} \times \frac{1}{13} \\ = \frac{43}{26} \\ = 1 \frac{17}{26} [/tex]
3.
[tex]4 \frac{1}{2} \times 0.3 \div \frac{1}{4} \\ = \frac{9}{2} \times \frac{3}{10} \div \frac{1}{4} \\ = \frac{27}{20} \div \frac{1}{4} \\ = \frac{27}{20} \times \frac{4}{1} \\ = \frac{27}{5} \times \frac{1}{1} \\ = \frac{27}{5} \\ = 5.4[/tex]
Maaf Kalau Salah