Penjelasan dengan langkah-langkah:
No 9
[tex]5 \frac{1}{3} - 4 \div 2.5 \times 2 \frac{4}{5} [/tex]
[tex] = \frac{16}{3} - 4 \div \frac{25}{10} \times \frac{14}{5} [/tex]
[tex] = \frac{16}{3} - 4 \times \frac{2}{5} \times \frac{14}{5} [/tex]
[tex] = \frac{16}{3} - \frac{8}{5} \times \frac{14}{5} [/tex]
[tex] = \frac{16}{3} - \frac{112}{25} [/tex]
[tex] = \frac{400 - 336}{75} [/tex]
[tex] = \frac{64}{75} [/tex]
[tex] \: [/tex]
No 10
[tex]3.2 \div 2.8 \div ( 1\frac{1}{2} \times 3 \frac{3}{4} )[/tex]
[tex] = \frac{32}{10} \div \frac{28}{10} \div ( \frac{3}{2} \times \frac{15}{4} )[/tex]
[tex] = \frac{16}{5} \times \frac{5}{14} \div \frac{45}{8} [/tex]
[tex] = \frac{16}{5} \times \frac{5}{14} \times \frac{8}{45} [/tex]
[tex] = \frac{64}{315} [/tex]
Jawab:
9.64/75
Penjelasan dengan langkah-langkah:
9. Penjelasan dengan langkah-langkah:
cari pembagian n perkalian nya
5 1/3 - 4 : 2,5 × 2 4/5
= 4 :2,5 × 2 4/5
=4 : 2 1/2 × 2 4/5
=4 x 5/2 × 14/5
=112/25
=4 12/25
5 1/3 - 4 12/25
=16/3 - 112/25
=400-336/75
=64/75
10. 3,2:2,8:(1 1/2×3 3/4)
32/10 : 28/10 :(143/8)
32×28×8/143
896×8/143 = 7168/143 = 50, 125
semoga bermanfaat
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