Răspuns :
17/3 - 13/4 + 29/12= →cmmmc al numerelor( 3,4,12) =12
=(4×17)/12 - ( 3 x 13) /12 + 29/12=
= 68/12 - 39/12 + 29/12=
=58/12=
=29/6=
= 4 intregi si 5/6=
=4,8(3)
2/3 + 2/3 : 4/3 + 1/5 =2/3 + 2/3 x 3/4 + 1/5 = 2/3 + 1/2 + 1/5=
=(10 x 2)/30 + 15/30 + 6/30 =
=20/30 + 15/30 + 6/30 =
= 41/30=
= 1 intreg si 11/30=
= 1,3(6)
=(4×17)/12 - ( 3 x 13) /12 + 29/12=
= 68/12 - 39/12 + 29/12=
=58/12=
=29/6=
= 4 intregi si 5/6=
=4,8(3)
2/3 + 2/3 : 4/3 + 1/5 =2/3 + 2/3 x 3/4 + 1/5 = 2/3 + 1/2 + 1/5=
=(10 x 2)/30 + 15/30 + 6/30 =
=20/30 + 15/30 + 6/30 =
= 41/30=
= 1 intreg si 11/30=
= 1,3(6)