3/4 - 5/9 = 2/3 × 4/5 : 3/10 = 4/7 + 1 1/2 =

3/4-5/9= 27-20 /36= 7/36
2/3×4/5:3/10= 8/15×10/3 = 80/45= 16/9
4/7+1 1/2 = 1 (8+7)/14 = 1 15/14

maaf jika salah

[tex] \frac{3}{4} - \frac{5}{9} = \frac{27- 20}{36} = \frac{7}{36} \\ 2. \frac{2}{3} \times \frac{4}{5} \div \frac{3}{10} \\ = \frac{2}{3} \times \frac{4}{5} \times \frac{10}{3} \\ = \frac{80}{45} \\ = 1 \frac{35}{45} = 1 \frac{7}{9} \\ 3. \frac{4}{7} + 1 \frac{1}{2} \\ = \frac{4}{7} + \frac{3}{4} = \frac{16 + 21}{28} = \frac{37}{28} = 1 \frac{9}{28} [/tex]