Sagot :
81/72=9/8 car 9x9=81 et 8x9=72
55/60=11/12 car 11x5=55 et 12x5=60
24/16=3/2 car 3x8=24 et 2x8=16
44/33=4/3. car 4x11=44 et 3x11=33
55/60=11/12 car 11x5=55 et 12x5=60
24/16=3/2 car 3x8=24 et 2x8=16
44/33=4/3. car 4x11=44 et 3x11=33
81/72
= 81÷9/72÷9
=9/8
55/60
=55÷5/60÷5
= 11/12
24/16
=24÷8/16÷8
=3/2
44/33
=44÷11/33÷11
=4/3