A) 6 x [ 1/4 +( 7/36 - 1/24):7/6=
=6 × [ 1/4 + ( 14/72 - 3/72) : 7/6=
=6× ( 1/4 + 11/72 ×6/7)=
=6× ( 1/4 +11/84) =
=6×( 21/84 + 11/84)=
=6×32/84=
=32/14=
=16/7=
=2 intregi si 2/7
B) 2 intregi si 1/3 = (2×3+1)/3=7/3
=7/3 + [ ( 3/2+ 4/9 ×4/9): 1/4]=
=7/3 + [( 3/2+1) : 1/4]=
=7/3 + (5/4 ×4/1)=
= 7/3 + 5=
=7/3 +15/3 =
= 22/3=
=7 intregi 1/3