B. (1 7/8:2 5/6 ) - ( 1 7/8×5 1/6)
tolong kak besok dikumpul:)
dibawh
Penjelasan dengan langkah-langkah:
[tex]1. \: \: (1 \frac{7}{8} \times 2 \frac{5}{6} ) + (1 \frac{7}{8} \div 5 \frac{1}{6} ) \\ \\ (\frac{15}{8} \times \frac{17}{6} ) + ( \frac{15}{8} \times \frac{6}{31} ) \\ \\ ( \frac{5}{8} \times \frac{17}{2} ) + (\frac{15}{4} \times \frac{3}{31} ) \\ \\ \frac{85}{16} + \frac{45}{124} = \frac{2.635 + 180}{496} = \frac{2.815}{496} = 5 \frac{15}{496} [/tex]
[tex]2. \: \: (1 \frac{7}{8} \div 2 \frac{5}{6} ) - (1 \frac{7}{8} \times 5 \frac{1}{6} ) \\ \\ (\frac{15}{8} \times \frac{6}{17} ) - ( \frac{15}{8} \times \frac{31}{6} ) \\ \\ (\frac{15}{4} \times \frac{3}{17} ) - ( \frac{5}{8} \times \frac{31}{2} ) \\ \\ \frac{45}{68} - \frac{155}{16} = \frac{180 - 2.635}{272} = - \frac{2.445}{272} = - 8 \frac{269}{272} [/tex]
MOGA MEMBANTU HEHE
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