tolong dijawab pake cara 14 & 15

14.
[tex]3 \frac{3}{4} = \frac{15}{4} \\ 3 \frac{2}{6} = \frac{20}{6} \\ 2\frac{4}{12} = \frac{28}{12} [/tex]
jadi:
[tex] = \frac{15}{4} \times \frac{6}{20} \\ = \frac{90}{80} [/tex]
[tex] = \frac{15}{4} \div \frac{20}{6} \div \frac{28}{12} \\ = \frac{15}{4} \times \frac{6}{20} \times \frac{12}{28} \\ = \frac{90}{80} \times \frac{12}{28} \\ = \frac{1080}{2240} \\ = \frac{27}{56} [/tex]
jawabannya yang A

15.
[tex]7 = \frac{7}{1} \\ 3 \frac{4}{9} = \frac{31}{9} [/tex]
jadi:
[tex] = \frac{7}{1} - \frac{31}{9} \\ = \frac{7 \times 9}{1 \times 9} - \frac{31}{9} \\ = \frac{63}{9} - \frac{31}{9} \\ = \frac{32}{9} \\ = 3 \frac{5}{9} [/tex]

jawabannya A

Shallom! My pleasure!
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14. Jawab: 3[tex] \frac{3}{4} [/tex] : 3[tex] \frac{2}{6} [/tex] : 2[tex] \frac{4}{12} [/tex] = [tex] \frac{15}{4} [/tex] x [tex] \frac{6}{20} [/tex] x [tex] \frac{3}{7} [/tex] ( 4 dan 12nya sederhanakan saja ) = [tex] \frac{27}{56} [/tex] (A)
Jadi jawabannya adalah A ( 27 / 56 )

15. Jawab: 7 - 3[tex] \frac{4}{9} [/tex]
= 7 - 1 = 6 9/9 (menyesuaikan dengan penyebut pecahan 4 / 9)
6 [tex] \frac{9}{9} [/tex] - 3[tex] \frac{4}{9} [/tex] = 3 5/9

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