Question

-1,3+2,(4)=??? I dau coroana

Answer 1

1,3=13/10
2,(4)=22/9
le aduci la același numitor
-117/90+220/90=103/90=1,14

Answer 2

$\it -1,3+2\dfrac{4}{9}=-\dfrac{13}{10}+\dfrac{22}{9} = \dfrac{^{10)}22}{\ 9}-\dfrac{^{9)}13}{\ 10}=\dfrac{220-117}{90}=\dfrac{103}{90}=1,1(4)$