Question

ayuda
doy coronita plisss
​

Answer 1

Explicación paso a paso:

1.

$\frac{4 \times 8 \times 9 \times 3 \times 7}{9 \times 10 \times 12 \times 8 \times 9} = \frac{6048}{77760} = \frac{7}{90}$

2.

$\frac{8}{15} + \frac{6}{9} - \frac{3}{5} + \frac{8}{11} \\ \frac{8 \times 9}{15 \times 9} = \frac{72}{135} \\ \frac{6 \times 15}{9 \times 15} = \frac{90}{135} \\ \frac{72 + 90}{135} - \frac{3}{5} + \frac{8}{11} \\ \frac{162 \times 5}{135 \times 5} - \frac{3 \times 135}{5 \times 135} = \frac{810 - 405}{675} \\ \frac{405 \times 11}{675 \times 11} + \frac{8 \times 675}{11 \times 675} = \frac{4455 + 5400}{7425} \\ \frac{9855}{7425} = \frac{73}{55}$

3.

$\frac{6 \times 14 \times 1}{25 \times 16 \times 7} = \frac{84}{2800} = \frac{3}{100}$

4.

$\frac{21 \times 2 \times 9 \times 11}{23 \times 2 \times 9 \times 11} + \frac{4 \times 23 \times 9 \times 11}{2 \times 23 \times 9 \times 11} - \frac{6 \times 23 \times 2 \times 11}{9 \times 23 \times 2 \times 11} + \frac{3 \times 23 \times 2 \times 9}{11 \times 23 \times 2 \times 9} = \frac{4158 + 9108 - 3036 + 1242}{4554} = \frac{11472}{4554} = \frac{1912}{759} = 2.5191$

5.

$\frac{9 \times 8 \times 11}{3 \times 7 \times 21} = \frac{792}{441} = \frac{88}{49}$