kak tolong bantu aku ya di nomer 12

Please, let me answer your question :)
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Mapel : Matematika
Tentang : Pecahan
Pertanyaan yg diajukan : 1
Pembahasan :

[tex] 1\frac{1}{4} = \frac{5}{4} = \frac{5 \times 25}{4 \times 25} = \frac{125}{100} = 1.25[/tex]

[tex]1.25 + 1.25 = 2.5[/tex]

[tex]1 \frac{1}{2} = \frac{3}{2} = \frac{3 \times 5}{2 \times 5} = \frac{15}{10} = 1.5[/tex]

4,25 - 2,5 + 1,5
= 1,75 + 1,5
= 3,25

Jika diubah ke bentuk pecahan menjadi :

[tex]3.25 = 3 \frac{25}{100} = 3 \frac{25 \div 25}{100 \div 25} = 3 \frac{1}{4} [/tex]

Jawaban : C

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Hopefully this is the best for you.

MAKE BRAINLY GREAT AGAIN!!!

Heil Manstein!

ini untuk jwbnnya
4,25-2,5+1,5=3,25