Răspuns:
Explicație pas cu pas:
2 1/7=(2x7)+1/7=14+1/7=15/7
3 2/7= (3x7)+2/7=21+2/7=23/7
4 3/7=(4x7)+3=28+3/7=31/7
5 4/9=((5x9)+4/9=45+4/9=49/9
6 5/9= (6x9)+5/9=54+5/9=59/9