Question

24 supra 31 plus 18 supra 31
45 supra 19 plus 24 supra 19
15 supra 37 plus 18 supra 37
41 supra 11 plus 16 supra 11
29 supra 5 plus 42 supra 5
48 supra 20 plus 19 supra 20
7 supra 28 plus 34 supra 28 ​

Answer 1

daca ai acelasi numitor, aduni ( sau scazi ), dupa caz, numaratorii intre ei.

24/31 + 18/31 = ( 24 + 18 ) / 31 = 42/31

45/19 + 24/19 = 45 + 24/19 = 69/19

15/37 + 18/37 = 15 + 18 / 37 = 33/37

41/11 + 16/11 = 41 + 16/11 = 57/11

29/5 + 42/5 = 29 + 42/5 = 71/5

48/20 + 19/20 = 48 + 19/20 = 67/20

7/28 + 34/28 = 7 + 34/28 = 41/28

/ = inseamna linia de fracție.