Question

calcule e simplifique

a)1/2-1/3

b)5/6-1/3

c)4/5-2/7

d)7/8-1/6

e)5/4-1/2

f)8/10-1/5


por favor e para amanha

Answer 1

Resposta:

$calcule \: e \: simplifique \: </p><p></p><p>a)1/2-1/3 = \frac{1}{2} - \frac{1}{3} = \frac{3- 2}{6} \\ \frac{1}{6} </p><p></p><p>b)5/6-1/3 = \frac{5}{6} - \frac{1}{3} = \frac{5 - 2}{6} = \frac{3 \div 3}{6 \div 3} = \frac{1}{2} </p><p></p><p>c)4/5-2/7 = \frac{4}{5} - \frac{2}{7} = \frac{28 - 10}{35} \\ \frac{18}{35} </p><p></p><p>d)7/8-1/6 = \frac{7}{8} - \frac{1}{6} = \frac{42 - 8}{48} = \\ \frac{34 \div 2}{48 \div 2} = \\ \frac{17}{24} </p><p></p><p>e)5/4-1/2 = \frac{5}{4} - \frac{1}{2} \\ \frac{10 - 4}{8} \\ \frac{6 \div 2}{8 \div 2} \\ \frac{1}{4} </p><p></p><p>f)8/10-1/5 = \frac{8}{10} - \frac{1}{5} \\ \frac{40 - 10}{50} \\ \frac{30 \div 10}{50 \div 10} \\ \frac{3}{5} </p><p></p><p>$