2. 4 8/10 - 2 2/10=
3. 6 3/5 - 5,2 - 5/8=
4. 5/6 : 2/5=
5. 5 1/2 : (7 3/8 -6 1/2)=
TOLONG DI KERJAKAN
Penjelasan dengan langkah-langkah:
[tex]1). \frac{1}{2} + 9 \frac{2}{3} \\ = \frac{1}{2} + \frac{9 \times 3 + 2}{3} \\ = \frac{1}{2} + \frac{29}{3} \\ = \frac{3}{6} + \frac{58}{6} \\ = \frac{61}{6} \\ = 10 \frac{1}{6} [/tex]
[tex]2).4 \frac{8}{10} - 2 \frac{2}{10} \\ = 4 - 2( \frac{8}{10} - \frac{2}{10} ) \\ = 2 \frac{6}{10} [/tex]
[tex]3).6 \frac{3}{5} - 5,2 - \frac{5}{8} \\ = \frac{6 \times 5 + 3}{5} - \frac{52}{10} - \frac{5}{8} \\ = \frac{33}{5} - \frac{52}{10} - \frac{5}{8} \\ = \frac{264}{40} - \frac{208}{40} - \frac{25}{40} \\ = \frac{56}{40} - \frac{25}{40} \\ = \frac{31}{40} [/tex]
[tex]4). \frac{5}{6} \div \frac{2}{5} \\ = \frac{5}{6} \times \frac{5}{2} \\ = \frac{5 \times 5}{6 \times 2} \\ = \frac{25}{12} \\ = 2 \frac{1}{12} [/tex]
[tex]5).5 \frac{1}{2} \div (7 \frac{3}{8} - 6 \frac{1}{2} ) \\ = \frac{5 \times 2 + 1}{2} \div (7 - 6( \frac{3}{8} - \frac{4}{8} )) \\ = \frac{11}{2} \div 1 \frac{ - 1}{8} \\ = \frac{11}{2} \div \frac{ 1 \times 8 - 1}{8} \\ = \frac{11}{2} \div \frac{7}{8} \\ = \frac{11}{2} \times \frac{8}{7} \\ = \frac{11 \times 8}{2 \times 7} \\ = \frac{88}{14} \\ = 6 \frac{4}{14} [/tex]
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