8.3+1 2/3-2,25
9.9-7,5+6 2/3
[tex] \mathbb{ \color{aqua}{ \underbrace{JAWABAN}}}[/tex]
[tex] \begin{aligned} &&\begin{aligned} \bf{8.} \: \boxed{ \bf \: 2 \frac{5}{12} \: } \end{aligned} \end{aligned}[/tex]
[tex] \begin{aligned} &&\begin{aligned} \bf{9.} \: \boxed{ \bf \: 8 \frac{1}{6} \: } \end{aligned} \end{aligned}[/tex]
------------------
[tex] \mathbb{ \color{orange}{ \underbrace{PENYELESAIAN}}}[/tex]
SOAL 8 :
[tex] \boxed{ \: \begin{aligned} &\tt{3 + { \small{1 \frac{2}{3}}} - 2,25}\Rightarrow{ \tiny{ \boxed{ \sf{ubah \: menjadi \: pecahan \: biasa}}}} \\ &\tt = \small{\tt{ \frac{3}{1} + \frac{5}{3} - \frac{225}{100} }}\Rightarrow{ \tiny{ \boxed{ \sf{sederhanakan}}}} \\ &\tt = \small{\tt{ \frac{3}{1} + \frac{5}{3} - \frac{9}{4} }}\Rightarrow{ \tiny{ \boxed{ \sf{samakan \: penyebutnya}}}} \\ &\tt = \small{\tt{ \frac{36}{12} + \frac{20}{12} - \frac{27}{12}}} \\ &\tt = \small{\tt{ \frac{36 + 20 - 27}{12} }} \\ &\tt = \small{\tt{ \frac{29}{12}}} \\ &\tt = \small{\red{ \boxed{ \green{ \bf{2 \frac{5}{12} }}}}} \end{aligned} \: } \\ \\ [/tex]
SOAL 9 :
[tex] \boxed{ \: \begin{aligned} &\tt{9 - 7,5 + { \small{6 \frac{2}{3}}}}\Rightarrow{ \tiny{ \boxed{ \sf{ubah \: menjadi \: pecahan \: biasa}}}} \\ &\tt = \small{\tt{ \frac{9}{1} - \frac{75}{10} + \frac{20}{3} }} \Rightarrow{ \tiny{ \boxed{ \sf{samakan \: pnyebutnya}}}} \\ &\tt = \small{\tt{ \frac{270}{30} - \frac{225}{30} + \frac{200}{20} }} \\ &\tt = \small{\tt{ \frac{270 - 225 + 200}{30} }} \\ &\tt = \small{\tt{}} \frac{245}{30} \Rightarrow{ \tiny{ \boxed{ \sf{sederhanakan}}}} \\ &\tt = \small{\tt{ \frac{49}{6} }} \\ &\tt = \small{\red{ \boxed{ \green{ \bf{8 \frac{1}{6} }}}}} \end{aligned} \: }[/tex]
[tex] \colorbox{ff0000}{} \colorbox{ff4000}{}\colorbox{ff8000}{}\colorbox{ffc000}{}\colorbox{ffff00}{}\colorbox{c0ff00}{}\colorbox{80ff00}{}\colorbox{40ff00}{}\colorbox{00ff00}{}\colorbox{00ff40}{}\colorbox{00ff80}{}\colorbox{00ffc0}{}\colorbox{00ffff}{}\colorbox{00c0ff}{}\colorbox{0080ff}{}\colorbox{0040ff}{}\colorbox{0000ff}{}\colorbox{4000ff}{}\colorbox{8000ff}{}\colorbox{c000ff}{}\colorbox{ff00ff}{}\colorbox{ff00c0}{}\colorbox{ff00a0}{}\colorbox{ff0080}{}\colorbox{ff0040}{} [/tex]
Jawaban:
1. 8.3 + 1⅔ - 2.25
= 83/10 + 5/3 - 225/100
= 83/10 + 5/3 - 9/4
= 249/30 + 50/30 - 9/4
= 299/30 - 9/4
= 1.196/120 - 270/120
= 926/120
= 463/60
2. 9.9 - 7.5 + 6⅔
= 99/10 - 75/10 + 20/3
= 99/10 - 15/2 + 20/3
= 99/10 - 45/6 + 40/6
= 99/10 - 85/6
= 594/60 - 850/60
= -256/60
= -64/15
Semoga membantu^^ Jangan lupa dijadiin Jawaban Tercerdas ya, kalau kamu suka. Terimakasih:)
[answer.2.content]
