Question

Nu inteleg cum se fac aceste fracti."
:7/2-1/5=? 5/6-1/3=? 2 5/6-1/3=? 2 5/4-1 1/2=? 3 2/5=? 20/2-4/3+11/6=? 17/4 + 5/8 - 3/2=? 1/2 + 1/3 + 1/6=? 2 5/3+ 1 4/9

Deci eu nu pot sa le fac.

Answer 1

7 / 2 - 1 /5 = 35 / 10 - 2 / 10 = 33 / 10
5 /6 - 1 / 3 = 5 / 6 - 2 / 6 = 3 / 6 = 1 / 3
25 / 4 - 11 / 2 = 25 /4 - 22 / 4 = 3 / 4
20 / 2 - 4 / 3 + 11 / 6 = 60 / 6 - 8 / 6 + 11 / 6 = 52 / 6 + 11 /6 = 63 / 6
17 / 4 + 5 / 8 - 3 / 2 = 34 / 8 + 5 / 8 - 12 / 8 = 39 / 8 - 12 / 8 = 27 / 8
1 / 2 + 1 / 3 + 1 /6 = 3 / 6 + 2 / 6 + 1 /6 = 6 /6 = 1
25 / 3 + 14 / 9 = 75 / 9 + 14 / 9 = 89 / 14