Matematika Sekolah Menengah Atas kk jangan ngasal kk pake cara​

kk jangan ngasal kk pake cara​

[tex]2. \frac{4}{5} + \frac{3}{8} [/tex]

[tex] = 4 + ( \frac{4}{5} + \frac{3}{4} - \frac{3}{8} )[/tex]

[tex] = 4 + ( \frac{32}{40} + \frac{30}{40} - \frac{15}{40} )[/tex]

[tex] = 4 + \frac{47}{40} [/tex]

[tex] \frac{57}{40} [/tex]

[tex]3.5 \frac{5}{6} - \frac{1}{4} [/tex]

[tex] = (5 - 2) + ( \frac{5}{6} - \frac{1}{4} )[/tex]

[tex] = 3 + ( \frac{10}{12} - \frac{3}{12} )[/tex]

[tex]3 \frac{7}{12} [/tex]

2. D. 5 7/40

3. B. 3 7/12

Penjelasan dengan langkah-langkah:

2. 4 4/5 + 3/4 - 3/8

= 4 + (4/5 + 3/4 - 3/8)

= 4 + (32/40 + 30/40 - 15/40)

= 4 + 47/40

= 5 7/40

3. 5 5/6 - 2 1/4 = (5-2) + (5/6 - 1/4)

= 3 + (10/12 - 3/12)

= 3 7/12

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