Question

$\frac{5}{9} +\frac{7}{12} =\\\\-\frac{7}{15} -\frac{3}{10} =\\\\\frac{4}{21} -\frac{5}{14} =\\\\3-\frac{1}{2} -\frac{1}{4} -\frac{1}{5} -\frac{1}{6} =\\\\\frac{5}{6}-\frac{4}{5} -\frac{7}{15} +\frac{1}{2} +\frac{1}{3} =$

Answer 1

Resposta:

Explicação passo a passo:

5/9+7/12=

20/36+21/36=

41/36

-7/15-3/10=

-14/30-9/30=

-23/30

4/21-5/14=

8/42-15/42=

-7/42= [ simplifica por 7]

-1/6

3-1/2-1/4-1/5-1/6=

180/60-30/60-15/60-10/60=

150/60-15/60-10/60=

135/60-10/60=

125/60= [simplifica por 5]

25/12

5/6-4/5-7/15+1/2+1/3=

25/30-24/30-14/30+15/30+10/30=

1/30-14/30+15/30+10/30=

-13/30+15/30+10/30=

2/30+10/30=

12/30= [ simplifica por 6]

2/5