Question

Determine a soma das fraçoes e simplifique se possível:
a)1/6+3/8+1/3=

b)5/12+1/2+3/4=

c)1/7+1/2+3/14=

Answer 1

a)

$\frac{1}{6} + \frac{3}{8} + \frac{1}{3} = \frac{4 + 9 + 8}{24} = \frac{21}{24} \div 3 = \frac{7}{8}$

b)

$\frac{5}{12} + \frac{1}{2} + \frac{3}{4} = \frac{5 + 6 + 9}{12} = \frac{20}{12} \div 4 = \frac{5}{3}$

c)

$\frac{1}{7} + \frac{1}{2} + \frac{3}{14} = \frac{2 + 7 + 3}{14} = \frac{12}{14} \div 2 = \frac{6}{7}$