Question

bom.diaaa matemática.kk


$\frac{2}{5} + \frac{9}{10} - \frac{1}{2}$


$1 \ + \frac{37}{11} . \frac{11}{37}$

$1 - \frac{4}{7} \div \frac{8}{14}$


$\frac{3}{5} . \frac{2}{9} \div \frac{1}{2}$
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Answer 1

Explicação passo a passo:

a)

2/5 + 9/10 - 1/2

mmc = 10

4/10 + 9/10 - 5/10 = 8/10 = 4/5

b)

1 + 37/11 * 11/37 = 1 + 1 = 2

c)

1 - (4/7)/(8/14) = 1 - 1 = 0

d)

3/5 * (2/9)/(1/2) =

(3/5)*(4/9) = 12/45 = 4/15