1. 1/2 : (1/4 : 4) - 1/8 ×1/2 × 2 =...... 2. 7 5/8 - 3 1/6 + 2 1/4 - 2 5/12 =..... 3. 35/100 × 15/14 =.....

jawab :
1. 7 7/8
2. 3 13/24
3. 3/8


[tex]1.) \frac{1}{2} \div ( \frac{1}{4} \div 4) - \frac{1}{8} \times \frac{1}{2} \times 2 = \frac{1}{2} \div ( \frac{1}{4} \times \frac{1}{4} ) - \frac{1}{8} \times \frac{1}{2} \times 2 \\ = \frac{1}{2} \div ( \frac{1}{4} \times \frac{1}{4} ) - \frac{1}{8} = \frac{1}{2} \div \frac{1}{16} - \frac{1}{8} = \frac{1}{2} \times 16 - \frac{1}{8} = 8 - \frac{1}{8} \\ = \frac{63}{8} = 7 \frac{7}{8} \\ 2.)7 \frac{5}{8} - 3 \frac{1}{6} + 2 \frac{1}{4} - 2 \frac{5}{12} = \frac{35}{8} - \frac{1}{2} + \frac{1}{2} - \frac{5}{6} \\ = \frac{35}{8} \frac{5}{6} = \frac{85}{24} = 3 \frac{13}{24} \\ 3.) \frac{35}{100} \times \frac{15}{14} = \frac{7}{20} \times \frac{15}{14} \\ = \frac{1}{4} \times \frac{3}{2} = \frac{3}{8} [/tex]