Question

-25/27+10/27-12/27 ayuda es para hoy​

Answer 1

Explicación paso a paso:

1.

$- \frac{25}{27} + \frac{10}{27} - \frac{12}{27} = \frac{ - 25 + 10 - 12}{27} \\ - \frac{27}{27} = - 1$

2.

$\frac{7}{13} - \frac{2}{13} - \frac{5}{13} = \\ \frac{7 - 2 - 5}{13 } = \frac{0}{13} = 0$

3.

$- ( - \frac{13}{7} ) + \frac{18}{21} = \frac{13}{7} + \frac{18}{21} \\ \\m.c.m = 21 \\ \\ \frac{39}{21} + \frac{18}{21} = \frac{57}{21} = \frac{19}{7}$

4.

$- \frac{5}{2} - \frac{8}{3} - \frac{12}{4} \\ m.c.m = 12 \\ \frac{ - 30 - 32 - 36}{12} = - \frac{98}{12} = - \frac{49}{6}$

5.

$- 7 + \frac{2}{8} = \frac{ - 54}{8} = - \frac{27}{4}$

6.

$\frac{3}{9} - \frac{6}{2} = \frac{3 \times 2 - 9 \times 6}{9 \times 2} \\ \frac{6 - 54}{18} = - \frac{48}{18} = - \frac{8}{3}$

7.

$12 \times \frac{5}{6} \times \frac{3}{4} \times 8 \times \frac{5}{3} \\ 1 \times 5 \times 1 \times 4 \times 5 = 100$

8.

$\frac{3}{5} \times 125000000 = 75000000$

9.

$\frac{2}{ 3} \times 300000 = 200000$

10.

$1 \frac{1}{2} \div \frac{1}{6} \\ \frac{3}{2} \times 6 = 9$