11 2/7 + 6/5 =12 3/8 + 25/24 =15 2/5

Berikut ini adalah pertanyaan dari sofiaasokamarita pada mata pelajaran Matematika untuk jenjang Sekolah Dasar

11 2/7 + 6/5 =

12 3/8 + 25/24 =

15 2/5 + 6/25 =

plis jawab ​
11 2/7 + 6/5 =12 3/8 + 25/24 =15 2/5 + 6/25 =plis jawab ​

Jawaban dan Penjelasan

Berikut ini adalah pilihan jawaban terbaik dari pertanyaan diatas.

{\sf{4.~11\dfrac{2}{7}+\dfrac{6}{5}=\boldsymbol{\textsf{\textbf{12}}\dfrac{\textsf{\textbf{17}}}{\textsf{\textbf{35}}}}}}

{\sf{5.~12\dfrac{3}{8}+\dfrac{25}{24}=\boldsymbol{\textsf{\textbf{13}}\dfrac{\textsf{\textbf{5}}}{\textsf{\textbf{12}}}}}}

{\sf{6.~15\dfrac{2}{5}+\dfrac{6}{25}=\boldsymbol{\textsf{\textbf{15}}\dfrac{\textsf{\textbf{16}}}{\textsf{\textbf{25}}}}}}

 

Pembahasan

No. 4

\begin{aligned}{\sf{11\frac{2}{7}+\frac{6}{5}}}&={\sf{\frac{11\times7+2}{7}+\frac{6}{5}}}\\&={\sf{\frac{79}{7}+\frac{6}{5}}}\\&={\sf{\frac{395}{35}+\frac{42}{35}}}\\&={\sf{\frac{437}{35}}}\\&={\sf{12\frac{17}{35}}}\\\end{aligned}

 

No. 5

\begin{aligned}{\sf{12\frac{3}{8}+\frac{25}{24}}}&={\sf{\frac{12\times8+3}{8}+\frac{25}{24}}}\\&={\sf{\frac{99}{8}+\frac{25}{24}}}\\&={\sf{\frac{297}{24}+\frac{25}{24}}}\\&={\sf{\frac{322}{24}}}\\&={\sf{\frac{161}{12}}}\\&={\sf{13\frac{5}{12}}}\end{aligned}

 

No. 6

\begin{aligned}{\sf{15\frac{2}{5}+\frac{6}{25}}}&={\sf{\frac{15\times5+2}{5}+\frac{6}{25}}}\\&={\sf{\frac{77}{5}+\frac{6}{25}}}\\&={\sf{\frac{385}{25}+\frac{6}{25}}}\\&={\sf{\frac{391}{25}}}\\&={\sf{15\frac{16}{25}}}\end{aligned}

[tex]{\sf{4.~11\dfrac{2}{7}+\dfrac{6}{5}=\boldsymbol{\textsf{\textbf{12}}\dfrac{\textsf{\textbf{17}}}{\textsf{\textbf{35}}}}}}[/tex][tex]{\sf{5.~12\dfrac{3}{8}+\dfrac{25}{24}=\boldsymbol{\textsf{\textbf{13}}\dfrac{\textsf{\textbf{5}}}{\textsf{\textbf{12}}}}}}[/tex][tex]{\sf{6.~15\dfrac{2}{5}+\dfrac{6}{25}=\boldsymbol{\textsf{\textbf{15}}\dfrac{\textsf{\textbf{16}}}{\textsf{\textbf{25}}}}}}[/tex] Pembahasan–› No. 4[tex]\begin{aligned}{\sf{11\frac{2}{7}+\frac{6}{5}}}&={\sf{\frac{11\times7+2}{7}+\frac{6}{5}}}\\&={\sf{\frac{79}{7}+\frac{6}{5}}}\\&={\sf{\frac{395}{35}+\frac{42}{35}}}\\&={\sf{\frac{437}{35}}}\\&={\sf{12\frac{17}{35}}}\\\end{aligned}[/tex] –› No. 5[tex]\begin{aligned}{\sf{12\frac{3}{8}+\frac{25}{24}}}&={\sf{\frac{12\times8+3}{8}+\frac{25}{24}}}\\&={\sf{\frac{99}{8}+\frac{25}{24}}}\\&={\sf{\frac{297}{24}+\frac{25}{24}}}\\&={\sf{\frac{322}{24}}}\\&={\sf{\frac{161}{12}}}\\&={\sf{13\frac{5}{12}}}\end{aligned}[/tex] –› No. 6[tex]\begin{aligned}{\sf{15\frac{2}{5}+\frac{6}{25}}}&={\sf{\frac{15\times5+2}{5}+\frac{6}{25}}}\\&={\sf{\frac{77}{5}+\frac{6}{25}}}\\&={\sf{\frac{385}{25}+\frac{6}{25}}}\\&={\sf{\frac{391}{25}}}\\&={\sf{15\frac{16}{25}}}\end{aligned}[/tex]

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Last Update: Tue, 18 Oct 22