Question

7/5 + 1/2 + 3/10 =

5/8 + ( - 1/2 )+ ( - 1/4 ) =

2,6 + ( -3$\frac{1}{2}$ ) =

2$\frac{3}{5}$ + ( - 3 ) =

3$\frac{1}{6}$ + [ - 3, (6) ] =

-8$\frac{1}{5}$ + (-2 +3$\frac{1}{10}$ )

Answer 1

1)  7/5+1/2+3/10=?
Aduci la acelasi numitor(10) :
7/5 il amplifici cu 2, pe 1/2 cu 5 si pe 3/10 cu 1
si iti va da: 14+5+3/10. Adica 22/10
2)  5/8 - 1/2 -1/4
(5-4-2)/8 = -1/8
3)  13/5 -3/1
(13-15)/5 = -2/5
4)  19/6 - 33/9
(114-132)/36
82/36
5)  -41/ 5 -2 + 31/10
(-82-20+31) /10= -71/10