Sagot :
(5/1 - 1/4) : 6/5 - (3/1 - 7/6)
(20/4 - 1/4) : 6/5 -(18/6 - 7/6)
19/4 : 6/5 -11/6
19/4 x 5/6 - 11/6
19x5/4x6 - 11/6
95/24 - 11/6
95/24 - 44/24
51/24 : 3
17/8.
Voilà :)
B=(5-1/4):6/5-(3-7/6)
(5/1 - 1/4) : 6/5 - (3/1 - 7/6)
(20/4 - 1/4) : 6/5 -(18/6 - 7/6)
19/4 : 6/5 -11/6
19/4 x 5/6 - 11/6
19x5/4x6 - 11/6
95/24 - 11/6
95/24 - 44/24
51/24 : 3
17/8.
Voilà :)