Tlong ya kak isiin.. 1.3 1/5 × 3 3/4 = 2.2 2/9 : 4 2/4 = 3.25,8 × 6,56 = 4.42,72 : 17,8 =

1.
[tex] = 3 \frac{1}{5} \times 3 \frac{3}{4} \\ = \frac{9}{5} \times \frac{15}{4} \\ = \frac{145}{20} \\ = \frac{29}{4} [/tex]
2.
[tex] = 2 \frac{2}{9} \div 4 \frac{2}{4} \\ = \frac{20}{9} \div \frac{9}{2} \\ = \frac{20}{9} \times \frac{2}{9} \\ = \frac{40}{81} [/tex]