a. 12/24
b. 19/24
c. 20/24
d. 29/24
5. 5/6 - 3/4 + 9/12 = . . .
a. 10/12
b. 11/12
c. 10/11
d. 9/11
1. 9/12 - 3/8 = . . .
Jawaban:
☆ 5/6 + 3/8 = ...
[tex] \frac{5}{6} + \frac{3}{8} \\ \\ \sf = \frac{5 \times 8}{6 \times 8} + \frac{3 \times 6}{6 \times 8} \\ \\ \sf = \frac{40}{48} + \frac{18}{48} \: \: \: \: \: \: \: \: \: \\ \\ \sf = \frac{58 : 2}{48 : 2} \: \: \: \tt \: disederhanakan \\ \\ \sf = > \color{red}{\frac{29}{24} } \: \: opsi \: D.[/tex]
☆5/6 - 3/4 + 9/12
[tex] \frac{5}{6} - \frac{3}{4} + \frac{9}{12} \: \\ \\ \sf = \frac{2}{24} + \frac{9}{12} \: \: \: \: \: \\ \\ \sf = \frac{24}{288} + \frac{216}{288} \\ \\ \sf = \frac{240 : 24}{288 : 24} \: \: disederhanakan \\ \\ \sf = > \color{red}{ \frac{10}{12} } \: \: opsi \: A. \: \: \: \: [/tex]
☆9/12 - 3/8
[tex] \frac{9}{12} - \frac{3}{8} \\ \\ \sf = \frac{9 \times 8}{12 \times 8} - \frac{3 \times 12}{12 \times 8} \\ \\ \sf = \frac{72}{96} - \frac{36}{96} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \\ \sf = \frac{36 : 12}{96 : 12} \: = > \color{red}{ \frac{3}{8} } \: \: [/tex]
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