Question

cuanto da 1/5 + 5/12+ 1/3 
y tambien cuanto da 3/2- 4/5

Answer 1

$\frac{1}{5} + \frac{5}{12} + \frac{1}{3} = \frac{60:5.1+60:12.5+60:3+1}{60} = \frac{12+25+20}{60} = \frac{57}{60} = \frac{19}{20}$

$\frac{3}{2} - \frac{4}{5} = \frac{10:2.3-10:5.4}{10} = \frac{15-8}{10} = \frac{7}{10}$