tolong dibantu ya kak

[tex]1. \frac{8}{25} \times \frac{4}{4} = \frac{32}{100} = 32\%[/tex]
[tex]2. \frac{4}{7} + \frac{3}{2} = \frac{8 + 21}{14} = \frac{29}{14} = 2 \frac{1}{14} [/tex]
[tex]3. \frac{72}{100} + \frac{9}{4} = \frac{72 + 225}{100} = \frac{297}{100} = 2 \frac{97}{100} [/tex]
[tex]4.)0.62 - 0.315 = 0.305 = \frac{305}{1000} = \frac{61}{200} [/tex]

1.

[tex] \frac{8}{25} = \frac{8}{25} \times \frac{4}{4} = \frac{32}{100} = 32\%[/tex]

2.

[tex] \frac{4}{7} +1 \frac{1}{2} = \frac{4}{7} + \frac{3}{2} = \frac{8}{14} + \frac{21}{14} = \frac{29}{14} [/tex]

3.

[tex]0.72 + 2 \frac{1}{4} = \frac{72}{100} + \frac{9}{4} = \frac{72}{100} + \frac{225}{100} \\ = \frac{297}{100} \\ = 2.97[/tex]

4.

[tex] 62\% - 0.315 = \frac{62}{100} - \frac{315}{1000} \\ = \frac{620}{1000} - \frac{315}{1000} = \frac{305}{1000} = 0.305[/tex]

5. dari 40 kelereng diambil 24 kelereng

[tex] \frac{24}{40} \times \frac{2.5}{2.5} = \frac{60}{100} = 60\%[/tex]
kelereng yang diambil 60%

6.

[tex]3 \frac{1}{4} \times \frac{9}{10} = \frac{13}{4} \times \frac{9}{10} = \frac{117}{40} = 2 \frac{37}{40} [/tex]

7.

[tex] \frac{6}{7} \div 0.8 = \frac{6}{7} \div \frac{8}{10} \\ = \frac{6}{7} \times \frac{10}{8} \\ = \frac{60}{56} = 1 \frac{4}{56} = 1 \frac{1}{14} [/tex]