Răspuns:
Explicație pas cu pas:
a)
20/9 : 8/3 = 20/9 * 3/8 = 5/6
b)
-10/7 * 21/25 = -6/5
c)
-16/27 * (-9/4) = 4/3
d)
125/12 * (- 9/100) = -15/16
e)
-48/15 : -27/25 = 48/15*25/27 = 80/27
f)
24 *-7/36 = -14/3
g)
-57/3 : -19 = 57/3*1/19 = 1
h)
21/10 : 42 = 21/10 *1/42 = 1/20
i)
0 : 8/3 = 0
Răspuns:
13.
a)
[tex] \frac{20}{9} \div \frac{8}{3} = \frac{20}{9} \times \frac{3}{8} = \frac{5}{6} [/tex]
b)
[tex] \frac{ - 10}{7} \times \frac{21}{25} = \frac{ - 6}{5} [/tex]
c)
[tex] \frac{ - 16}{27} \times ( \frac{ - 9}{4} = \frac{4}{3} [/tex]
d)
[tex] \frac{125}{12} \times ( \frac{ - 9}{100} = \frac{ - 15}{16} [/tex]
e)
[tex] \frac{ - 48}{ 15} \div \frac{ - 27}{25} = \frac{48}{15} \times \frac{25}{27} = \frac{80}{27} [/tex]
f)
[tex] 24 \times \frac{ - 7}{36} = \frac{ - 14}{3} [/tex]
g)
[tex] \frac{ - 57}{3} \div 19= \frac{57}{3} \times \frac{1}{19} = 1 [/tex]
h)
[tex] \frac{21}{10} \div 42 = \frac{21}{10} \times \frac{1}{42} = \frac{1}{20} [/tex]
i)
[tex]0 \div \frac{8}{3} = 0[/tex]