Question

Ułamki
11/15 + 5/6 =
13/7 * (-21/4) =
-51/3 : 21/4 =
4/15 - 25/6=
35/6 + 48/21=
(- 3/8)* 4/15 =
7/15: 14/35 =
45/(21 )- 8/14=

Answer 1

11/15 + 5/6 = 22/30 + 25/30 = 47/30 = 1 17/30
13/7 * (-21/4) = 13/1 * (-3/4) = (-39/4) = 9 3/4
(-51/3) : 21/4 = (-51/3) * 4/21 = (-204/63) = (-3 15/63)
4/15 - 25/6 = 4/15 - 4 1/6 = 8/30 - 4 5/30 = -4 3/30 = (-4 1/10)
35/6 + 48/21 = 5 5/6 + 2 6/21 = 5 35/42 + 2 12/42 = 7 47/42 = 8 5/42
(-3/8) * 4/15 = (-1/2) * 1/5 = (-1/10)
7/15 : 14/35 = 7/15 * 35/14 = 1/3 * 7/2 = 7/6 = 1 1/6
45/21 - 8/14 = 2 3/21 - 8/14 = 2 6/42 - 24/42 = 1 48/42 - 24/42 = 1 24/42

Liczę że pomogłem i mam nadzieję na naj. :D