Răspuns :
ax 32= 544x 8; a= 544x 8:32= 136; 4x b:9= 12, 4xb= 12x 9, b = 12x 9: 4= 27; 6x 20:c= 12, 20:c = 12:6= 2, 20= 2c, c= 10
a×4=544 a=544:4=136 a=136; 4b=12×9=108 4b=108 b=108:4= 27 b=27 ;120:c=12 c=120:12=10 c=10;