Ответ:
4 7/15+2 7/30 - 5 1/30= 67/15+67/30-151/30=134/30+67/30-151/30= 201/30-151/30=50/30=5/3=1 2/3
5 1/2 +4 13/24 - 6 23/24 = 11/2+109/24 - 167/24=
132/24+109/24-167/24=241/24-167/24=74/24=37/12=3 1/12
13 11/12-1 3/4 + 2 5/6= 167/12-7/4+17/6=
167/12-21/12+34/12=180/12=15
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Ответ:
4 7/15+2 7/30 - 5 1/30= 67/15+67/30-151/30=134/30+67/30-151/30= 201/30-151/30=50/30=5/3=1 2/3
5 1/2 +4 13/24 - 6 23/24 = 11/2+109/24 - 167/24=
132/24+109/24-167/24=241/24-167/24=74/24=37/12=3 1/12
13 11/12-1 3/4 + 2 5/6= 167/12-7/4+17/6=
167/12-21/12+34/12=180/12=15