Question

Me ayudan 3/4 x 2.75 x 1/40=

6/8 x 0.95 x 2/5 =

2enteros 2/5 x 1/5÷0.025=

2enteros 3/8÷1.25x6/5x 0.25

3.54x7/8x2enteros1/5=

1entero3/4x3enteros2/5÷0.34

12/5x6/4÷2.25=

2.65x5/4÷0.75=
Doy 40 puntos....

Answer 1

Explicación paso a paso:

$\frac{3}{4} \times 2.75 \times \frac{1}{40} = \\ \\ \frac{3}{4} \times \frac{55}{20} \times \frac{1}{40} = \frac{165}{3.200} = \frac{33}{640}$

$\frac{6}{8} \times 0.95 \times \frac{2}{5} = \\ \\ \frac{6}{8} \times \frac{19}{20} \times \frac{2}{5} = \frac{228}{800} = \frac{57}{200}$

$2 \frac{2}{5} \times \frac{1}{5} \div 0.0025 = \\ \\ ( \frac{5 \times 2 + 2}{5} ) \times \frac{1}{5} \div \frac{1}{400} = \\ \\ \frac{12}{5} \times \frac{400}{5} = \frac{4800}{25} = 192$

$2 \frac{3}{8} \div 1.25 \times \frac{6}{5} \times 0.25 = \\ \\ ( \frac{8 \times 2 + 3}{8} ) \div \frac{5}{4} \times \frac{6}{5} \times \frac{1}{4} = \\ \\ \frac{19}{8} \div \frac{30}{80} = \\ \\ \frac{19}{8} \div \frac{3}{8} = \frac{152}{24} = \frac{19}{3}$

$3.54 \times \frac{7}{8} \times 2 \frac{1}{5} = \\ \\ \frac{177}{50} \times \frac{7}{8} \times ( \frac{5 \times 2 + 1}{5} ) = \\ \\ \frac{1.239}{400} \times \frac{11}{5} = \frac{13.629}{2.000}$

$1 \frac{3}{4} \times 3 \frac{2}{5} \div 0.34 = \\ \\ ( \frac{4 \times 1 + 3}{4} ) \times ( \frac{5 \times 3 + 2}{5} ) \div \frac{17}{50} = \\ \\ \frac{7}{4} \times \frac{17}{5} \div \frac{17}{50} = \\ \\ \frac{119}{20} \div \frac{17}{50} = \frac{5950}{340} = \frac{35}{2}$

$\frac{12}{5} \times \frac{6}{4} \div 2.25 = \\ \\ \frac{72}{20} \div \frac{9}{4} = \\ \\ \frac{18}{5} \div \frac{9}{4} = \frac{72}{45} = \frac{8}{5}$

$2.65 \times \frac{5}{4} \div 0.75 = \\ \\ \frac{53}{20} \times \frac{5}{4} \div \frac{3}{4} = \\ \\ \frac{265}{80} \div \frac{3}{4} = \\ \\ \frac{53}{16} \div \frac{3}{4} = \frac{212}{48} = \frac{53}{12}$