[tex]\huge{ \red { \underline{ \red{ \underline {\bf \color{navy}{ᴀ᭄ɴsᴡᴇʀ:-}}}}}}[/tex]
[tex] \sf• \: \: 2 \frac{1}{2} + 4.75 - 3.25[/tex]
[tex] = \sf \frac{5}{2} + 4.75 - 3.25[/tex]
[tex] \sf = 2.5 + 4.75 - 3.25[/tex]
[tex] \sf = 7.25 - 3.25[/tex]
[tex] \sf = \textcolor{red}{ \sf\: 4}[/tex]
[tex] \\ [/tex]
[tex]• \: \: \sf\frac{3}{5} \times 2 \frac{1}{3} \div 1.8[/tex]
[tex] \sf = \frac{3}{5} \times 2 \frac{1}{3} \div 1.8[/tex]
[tex] \sf = \frac{3}{5} \times \frac{7}{3} \div \frac{9}{5} [/tex]
[tex] \sf = \frac{3}{5} \times \frac{7}{3} \times \frac{5}{9} [/tex]
[tex] \sf = 7 \times \frac{1}{9} [/tex]
[tex] \sf = \textcolor{red}{ \sf\:\frac{7}{9} }[/tex]
[tex] \\ [/tex]
[tex]• \: \: \sf \frac{3}{4} \times 0.8 \div 2 \frac{2}{5 } [/tex]
[tex] = \sf \frac{3}{4} \times 0.8 \div \frac{12}{5} [/tex]
[tex] \sf = \frac{3}{4} \times \frac{4}{5} \div \frac{12}{5} [/tex]
[tex]\sf = \frac{3}{4} \times \frac{4}{5} \times \frac{5}{12} [/tex]
[tex] \sf = 3 \times \frac{1}{12} [/tex]
[tex] = \textcolor{red}{ \sf\:\frac{1}{4} }[/tex]
[tex] \\ [/tex]
[tex]• \: \: \sf2.65 + \frac{11}{20} - 1 \frac{2}{5} [/tex]
[tex] \sf = 2.65 + \frac{11}{20} - \frac{7}{5} [/tex]
[tex] \sf = \frac{53}{20} + \frac{11}{20} - \frac{7}{5} [/tex]
[tex]\sf = \frac{53 + 11 - 28}{20} [/tex]
[tex] \sf = \frac{36}{20} [/tex]
[tex]\sf = \frac{9}{5} [/tex]
[tex] = \textcolor{red}{ \sf\:1\frac{4}{5} }[/tex]
Penjelasan dengan langkah-langkah:
2½ + 4,75 – 3,25
= 2,5 + 1,5
= 4, 0
3/5 x 2⅓ : 1,8
= 3/5 x 7/3 x 10/18
= 7/5 x 5/9
= 7/9
¾ x 0,8 : 2²/5
= ¾ x 4/5 x 5/12
= 3/12
= ¼
2,65 + 11/20 – 1 ²/5
= 265/100 + 55/100 - 140/100
= 320/100 – 140/100
= 180/100
= 9/5
[answer.2.content]
