Matematika 1. hasil dari 1 2/5 + 3/8 × 3 1/5 - 0,25 orang baik tolong jawab yaa​

cortezyostulv – April 05, 2023

1. hasil dari 1 2/5 + 3/8 × 3 1/5 - 0,25
orang baik tolong jawab yaa​

[tex]1 \frac{2}{5} + \frac{3}{8} \times 3 \frac{1}{5} - 0.25[/tex]

[tex] = \frac{7}{5} + \frac{3}{8} \times \frac{16}{5} - \frac{25}{100} [/tex]

[tex] = \frac{7}{5} + \frac{3 \times 16}{8 \times 5} - \frac{25}{100} [/tex]

[tex] = \frac{7}{5} + \frac{48}{40} - \frac{25}{100} [/tex]

[tex] = \frac{7 \times 40}{5 \times 40} + \frac{48 \times 5}{40 \times 5} - \frac{25 \times 2}{100 \times 2} [/tex]

[tex] = \frac{280}{200} + \frac{240}{200} - \frac{50}{200} = \frac{200 + 240 - 50}{200} [/tex]

[tex]{ \boxed{ { = \frac{470}{200} = > 2 \frac{70}{200} = > 2.35}}} [/tex]

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