Question

Caucule e simplifique os resultados:
obs: isso são fraçoes
a)5/36+7/12=
b)1/5+3/4=
c)1/2+2/3+2/15+1/6=
d)5/4-7/6=
e)1/2-5/18=

Answer 1

a) $\frac{5}{36} + \frac{7}{12}$ = $\frac{5+3.7}{36} = \frac{5+21}{36} = \frac{26}{36} = \frac{13}{18}$

b) $\frac{1}{5} + \frac{3}{4} = \frac{4.1+5.3}{20} = \frac{19}{20}$

c) $\frac{1}{2} + \frac{2}{3} + \frac{2}{15} + \frac{1}{6} = \frac{1.15+10.2+2.2+1.5}{30} = \frac{15+20+4+5}{30} = \frac{44}{30} = \frac{22}{15}$

d) $\frac{5}{4} - \frac{7}{6} = \frac{3.5-2.7}{12} = \frac{15-14}{12} = \frac{1}{12}$

e) $\frac{1}{2} - \frac{5}{18} = \frac{9.1-5}{18} = \frac{9-5}{18} = \frac{4}{18} = \frac{2}{9}$