Jawaban:
[tex]1. \: \frac{4}{6} \\ \\ 2. \frac{31}{24} \\ \\ 3. \frac{47}{40} \\ \\ 4. \frac{41}{24} \\ \\ 5. \frac{23}{20} [/tex]
Penjelasan dengan langkah-langkah:
[tex]1. \frac{5}{10} + \frac{2}{12} = \frac{5 \div 5}{10 \div 5} + \frac{2 \div 2}{12 \div 2} \\ = \frac{1}{2} + \frac{1}{6} \\ = \frac{3 + 1}{6} \\ = \frac{4}{6} \\ \\ 2. \frac{8}{12} + \frac{5}{8} = \frac{8 \div 4}{12 \div 4} + \frac{5}{8} \: \: \: \: \: \: \: \: \: \: \: \: \\ = \frac{2 \times 8}{3 \times 8} + \frac{5 \times 3}{8 \times 3} \\ = \frac{16}{24} + \frac{15}{24} \\ = \frac{16 + 15}{24} \\ = \frac{31}{24} \\ 3. \frac{6}{16} + \frac{8}{10} = \frac{6 \div 2}{16 \div 2} + \frac{8 \div 2}{10 \div 2} \\ = \frac{3 \times 5}{8 \times 5} + \frac{4 \times 8}{5 \times 8} \\ = \frac{15}{40} + \frac{32}{40} \\ = \frac{15 + 32}{40} \\ = \frac{47}{40} \\ 4. \frac{10}{12} + \frac{7}{8} = \frac{10 \div 2}{12 \div 2} + \frac{7}{8} \: \: \: \: \: \: \: \: \: \: \: \: \\ = \frac{5 \times 4}{6\times 4} + \frac{7 \times 3}{8 \times 3} \\ = \frac{20}{24} + \frac{21}{24} \\ \frac{20 + 21}{24} \\ = \frac{41}{24} \\ 5. \frac{9}{10} + \frac{5}{20} = \frac{9 \times 2}{10 \times 2} + \frac{5}{20} \: \: \: \: \: \: \: \: \: \: \: \: \\ = \frac{18}{20} + \frac{5}{20} \\ = \frac{18 + 5}{20} \\ = \frac{23}{20} [/tex]
