Question

RESUELVE LAS SIGUIENTES OPERACIONES
(-5/3)-(-3/7)
(-7 1/2)+(-3 3/4)
9/18+(-4/10)
6/9-(3/4)
(-1/4)-12/20
(-3 2/5)+(-5/3)
(-3/4)+(-1/5)
7/4-(-11/4)

Answer 1

Explicación paso a paso:

RESUELVE LAS SIGUIENTES OPERACIONES

$\frac{-5}{3} - \frac{-3}{7}=\frac{(-5)(7) - (-3)(3) }{21} =\frac{-35+9}{21} =\frac{-26}{21} \\\\-7\frac{1}{2} +-3 \frac{3}{4}=\frac{-13}{2} + \frac{-9}{4}=\frac{(-13)(2) + (-9)(1) }{4} =\frac{-26-9}{4} =\frac{-35}{4} \\\\\frac{9}{18} + \frac{-4}{10}=\frac{(9)(5) + (-4)(9) }{90} =\frac{45-36}{90} =\frac{9}{90} =\frac{1}{10} \\\\\frac{6}{9} - \frac{3}{4}=\frac{(6)(4) - (3)(9) }{36} =\frac{24-27}{36} =\frac{-3}{36} =\frac{-1}{12}$

$\frac{-1}{4} - \frac{12}{20}=\frac{(-1)(5) - (12)(1) }{20} =\frac{-5-12}{20} =\frac{-17}{20} \\\\-3\frac{2}{5} + \frac{-5}{3}=\frac{-13}{5} + \frac{-5}{3}=\frac{(-13)(3) + (-5)(5) }{15} =\frac{-39-25}{15} =\frac{-64}{15} \\\\\frac{-3}{4} + \frac{-1}{5}=\frac{(-3)(5) + (-1)(4) }{20} =\frac{-15-4}{20} =\frac{-19}{20} \\\\\frac{7}{4} - \frac{-11}{4}=\frac{(7)-(-11)}{4} =\frac{18}{4} =\frac{9}{2}$