Question

1) Resolva:

a) 1/7 + 4/5 x 3/4=
b) 1/3 ÷ 2/5 + 3/6=
c) 3/5 ÷ 3/7 + 4/9=
d) 5/6 x 4/2 + 4/5=
e) 1/3 + 3/5 ÷ 3/9=

Nota: ---> / isso e dividido só que o primeiro numero fica em cima e o segundo em baixo.

Answer 1

$> resolucao \\ \\ \geqslant fracoes \\ \\ a > \frac{1}{7} + \frac{4}{5} \times \frac{3}{4} \\ \\ a > \frac{1}{7} + \frac{12}{20} > mmc = 140 \\ \\ a > \frac{20 + 84}{140} \\ \\ a > \frac{104 \div 4}{140 \div 4} \\ \\ a > \frac{26}{35} \\ \\ = = = = = = = = = = = = = = = = \\ \\ b > \frac{ \frac{1}{3} }{ \frac{2}{5} } + \frac{3}{6} \\ \\ b > \frac{1}{3} \times \frac{5}{2} + \frac{3}{6} \\ \\ b > \frac{5}{6} + \frac{3}{6} \\ \\ b > \frac{8 \div 2}{6 \div 2} \\ \\ b > \frac{4}{3} \\ \\ = = = = = = = = = = = = = = = = = = = = \\ \\ c > \frac{ \frac{3}{5} }{ \frac{3}{7} } + \frac{4}{9} \\ \\ c > \frac{3}{5} \times \frac{7}{3} + \frac{4}{9} \\ \\ c > \frac{21}{15} + \frac{4}{9} > mmc = 45 \\ \\ c > \frac{63 + 20}{45} \\ \\ c > \frac{83}{45} \\ \\ = = = = = = = = = = = = = = = = = = = \\ \\ d > \frac{5}{6} \times \frac{4}{2} + \frac{4}{5} \\ \\ d > \frac{20 \div 4}{12 \div 4} + \frac{4}{5} \\ \\ d > \frac{5}{3} + \frac{4}{5} > mmc = 15 \\ \\ d > \frac{25 + 12}{15} \\ \\ d > \frac{37}{15} \\ \\ \\ = = = = = = = = = = = = = = = = = \\ \\ \\ e > \frac{1}{3} + \frac{ \frac{3}{5} }{ \frac{3}{9} } \\ \\ e > \frac{1}{3} + \frac{3}{5} \times \frac{9}{3} \\ \\ e > \frac{1}{3} + \frac{25}{15} > mmc = 15 \\ \\ e > \frac{5 + 27}{15} \\ \\ e > \frac{32}{15} \\ \\ \\ \\ > < > < > < > < > < > < > < >$