Question

Reduza todas as frações ao mesmo denominador e depois ponha-as em ordem crescente:
a)3/5, 5/4
b) 3, 2/5, 1/3
c) 3 1/2, 1 5/6

Answer 1

a) $\frac{3}{5}, \frac{5}{4}\to \frac{12}{20}, \frac{25}{20}$

b) $3, \frac{2}{5}, \frac{1}{3}\to \frac{45}{15}, \frac{6}{15}, \frac{5}{15}$

c) $3 \frac{1}{2},1 \frac{5}{6}\to \frac{2*3+1}{2} ,\frac{6*1+5}{6}\to \frac{7}{2}, \frac{11}{6} \to \frac{21}{6}, \frac{11}{6}$

Espero ter ajudado. :))

Answer 2

.
$\frac{3}{5} , \frac{5}{4} =$

mmc(5,4)=20
$\frac{12}{20} , \frac{25}{20}=$

ordem crescente
$\frac{3}{5} < \frac{5}{4}$

b)
$\frac{3}{1} , \frac{2}{5}, \frac{1}{3} = \\ \\ mmc(5,3)=15 \\ \\ \frac{45}{15}, \frac{6}{15}, \frac{5}{15}$

ordem crescente

$\frac{1}{3}< \frac{2}{5} <3$

c)
$3 \frac{1}{2} = \frac{3.2+1}{2} = \frac{7}{2} \\ \\ 1 \frac{5}{6} = \frac{1.6+5}{6} = \frac{11}{6} \\ \\ \frac{7}{2} , \frac{11}{6} =$

mmc(2,6)=6
$\frac{21}{6} , \frac{11}{6}$

ordem crescente

$1 \frac{5}{6} <3 \frac{1}{2}$