¼ + ⅕ =
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[tex] \frac{1}{4} + \frac{1}{5} \\ \\ = \frac{(5 \times 1) + (4 \times 1)}{4 \times 5} \\ \\ = \frac{5 + 4}{20} \\ \\ = \frac{9}{20} [/tex]
[tex] \mathbb \color{aqua} \underbrace{JAWABAN}[/tex]
[tex] \small \sf \frac{9}{20} \to pecahan \\ \sf atau \\ \small \sf 45\% \to persen \\ \sf atau \\ \small \sf 0,45 \to desimal[/tex]
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[tex] \mathbb \color{orange} \underbrace{PENYELESAIAN}[/tex]
[tex] \small{ \sf \frac{1}{4} + \frac{1}{5} \to samakan \: penyebut}[/tex]
[tex] \sf = \frac{1 \times 5}{4 \times 5} + \frac{1 \times 4}{5 \times 4} [/tex]
[tex] \sf = \frac{5}{20} + \frac{4}{20} [/tex]
[tex] \sf = \frac{5 + 4}{20} [/tex]
[tex]\small \sf = \boxed{ \sf\frac{9}{20} } \to pecahan[/tex]
[tex] \sf = \frac{9 \times 5}{20 \times 5} [/tex]
[tex] \sf = \frac{45}{100} [/tex]
[tex] \small \sf = \boxed{ \sf45\%} \to persen[/tex]
[tex] \small \sf = \boxed{ \sf0,45} \to desimal[/tex]
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[tex] \mathbb \color{red} \underbrace{KESIMPULAN}[/tex]
Jadi, hasil dari ¼ + ⅕ adalah 9/20 (pecahan) atau 45% (persen) atau 0,45 (desimal)
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