1. 0,5 + 2 1/4 adalah 2. 20% - 2 4/10 adalah 3. 4 6/4 x 2/8 adalah 4. 3,2 : 4/10 adalah bantu pakai jalan ya

0,5 = 5/10 :2/2
2 1/4= 9/4
1/2+ 9/4 = 2+9/4 = 11/4 = 2 3/4

20%= 20/100 = 1/5
2 4/10 = 24 /10 :2/2 = 12/5
1-12/5 = -11/5 =

4 6/4 = 22/4
22/4 . 2/8
22.2 / 4.8 = 44 / 32 : 4/4 = 11/8 = 1 3/8

3,2 =32/10 : 2/2 = 16/5
16/5: 4/10 = 16 /5 . 10 / 4 = 16.10 / 5.4
160/20 : 20/20 = 8

1.
[tex]0.5 = \frac{5}{10} \\ 2 \frac{1}{4} = \frac{9}{4} \\ jadi \\ = \frac{5}{10} + \frac{9}{4} \\ = \frac{5 \times 2}{10 \times 2} + \frac{9 \times 5}{4 \times 5} \\ = \frac{10}{20} + \frac{45}{20} \\ = \frac{55}{20} \\ = 2 \frac{3}{4} [/tex]
2.
[tex]20\% = \frac{20}{100} \\ 2 \frac{4}{10} = \frac{24}{10} \\ jadi \\ = \frac{20}{100} - \frac{24}{10} \\ = \frac{20}{100} - \frac{24 \times 10}{10 \times 10} \\ = \frac{20}{100} - \frac{240}{100} \\ = - \frac{220}{100} \\ = - \frac{22}{10} \\ = - \frac{11}{5} [/tex]
3.
[tex]4 \frac{6}{4} = \frac{22}{4} \\ jadi\\ = \frac{22}{4} \times \frac{2}{8} \\ = \frac{44}{32} \\ = \frac{11}{8} [/tex]

4.
[tex]3.2 = \frac{32}{10} \\ jadi \\ = \frac{32}{10} \div \frac{4}{10} \\ = \frac{32}{10} \times \frac{10}{4} \\ = \frac{320}{40} \\ = 8[/tex]