(13/18 + 1/3) - (5/27 - 1/6) = (13/18 + 6/18) - (5/27 - 3/18)= 19/18 - (5/27 - 3/18)= 19/18 - 5/27 + 3/18= 19/18 - 5/27 + 3/18= 19/18 - 5/27 + 3/18= 19/18 - 5/27 + 3/18= (1927 - 518 + 327) / (1827)= (513 - 90 + 81) / 486= 504 / 486= 28 / 27
(7/18 - 1/9) + (5/6 - 7/12) = (7/18 - 2/18) + (5/6 - 7/12)= 5/18 + (5/6 - 7/12)= 5/18 + (10/12 - 7/12)= 5/18 + 3/12= 5/18 + 1/4= (54 + 18) / 184= (20 + 18) / 72= 38 / 72= 19 / 36
(13/18 + 1/3) - (5/27 - 1/6) = (13/18 + 6/18) - (5/27 - 3/18)
= 19/18 - (5/27 - 3/18)
= 19/18 - 5/27 + 3/18
= 19/18 - 5/27 + 3/18
= 19/18 - 5/27 + 3/18
= 19/18 - 5/27 + 3/18
= (1927 - 518 + 327) / (1827)
= (513 - 90 + 81) / 486
= 504 / 486
= 28 / 27
(7/18 - 1/9) + (5/6 - 7/12) = (7/18 - 2/18) + (5/6 - 7/12)
= 5/18 + (5/6 - 7/12)
= 5/18 + (10/12 - 7/12)
= 5/18 + 3/12
= 5/18 + 1/4
= (54 + 18) / 184
= (20 + 18) / 72
= 38 / 72
= 19 / 36