Question

a)5/6-1/2-1/3 =
b)1/2-1/3+5/6-3/4 =
c)3/4+1/2-1/3-1/6 =

Answer 1

Resposta:

A) 1/2 + 1/3 + 5/6 =  3/6 + 2/6 + 5/6 = 10/6 =5/3

b) 3/4 + 5/6 - 1/2 = 9/12 + 10/12 - 6/12 = 13/12

c) 5/6 - 1/2 - 1/3 =5/6 - 3/6 -2/6 = 0

d) 1/2 - 1/3 + 5/6 - 3/4 =6/12 - 4/12 + 10/12 - 9/12 = 3/12 = 1/4

e) 1/1 - 1/2 - 1/10 =

Explicação passo-a-passo:

Answer 2

Olá,

a)

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

$= \frac{5}{6} - \frac{1}{2} . \frac{3}{3} - \frac{1}{3} . \frac{2}{2}$

$= \frac{5}{6} - \frac{3}{6} - \frac{2}{6}$

$= \frac{5 - 3 - 2}{6}$

$= \frac{0}{6}$

$= 0$

.

b)

$\frac{1}{2} - \frac{1}{3} + \frac{5}{6} - \frac{3}{4}$

$= \frac{1}{2} . \frac{6}{6} - \frac{1}{3} . \frac{4}{4} + \frac{5}{6} . \frac{2}{2} - \frac{3}{4} . \frac{3}{3}$

$= \frac{6}{12} - \frac{4}{12} + \frac{10}{12} - \frac{9}{12}$

$= \frac{6 - 4 + 10 - 9}{12}$

$= \frac{2 + 1}{12}$

$= \frac{3}{12}$

$= \frac{3 \div 3}{12 \div 3}$

$= \frac{1}{4}$

.

c)

$\frac{3}{4} + \frac{1}{2} - \frac{1}{3} - \frac{1}{6}$

$= \frac{3}{4} . \frac{3}{3} + \frac{1}{2} . \frac{6}{6} - \frac{1}{3} . \frac{4}{4} - \frac{1}{6} . \frac{2}{2}$

$= \frac{9}{12} + \frac{6}{12} - \frac{4}{12} - \frac{2}{12}$

$= \frac{9 + 6 - 4 - 2}{12}$

$= \frac{9 + 6 - 6}{12}$

$= \frac{9}{12}$

$= \frac{9 + 3}{12 \div 3}$

$= \frac{3}{4}$