Răspuns :
Explicație pas cu pas:
4/5×15/8=3/2
7/10×20/21=2/3
32/48×16/32=1/3
11/12×24/33=2/3
33/44×77/88×55/22=105/64
1313/3131×31/13=1
Explicație pas cu pas:
4/5×15/8=3/2
7/10×20/21=2/3
32/48×16/32=1/3
11/12×24/33=2/3
33/44×77/88×55/22=105/64
1313/3131×31/13=1