Question

calcule a conta a cima

Answer 1

3 / 10 - 4 / 15 =

45 - 40
---------- =
150

5
---- = simplificando por 5
150


1
--- ← resposta
30

Answer 2

$\frac{3}{10} - \frac{4}{15} = \frac{1}{5}$[tex]