Question

1) Calcule:

a) 3/5 + 7/5 - 4/5=

b) 3/2 - 2/3=

c) 1/2 + 2/5 - 3/10=
ME AJUDEM PRECISO PARA HOJE

Answer 1

a) $\frac{3}{5} +\frac{7}{5} -\frac{4}{5} =\frac{3+7-4}{5} =\frac{6}{5}$

b) $\frac{3}{2} -\frac{2}{3} = \frac{9-4}{6}=\frac{5}{6}$

c) $\frac{1}{2} +\frac{2}{5} -\frac{3}{10} =\frac{5+4-3}{10} =\frac{6}{10} =\frac{3}{5}$