Найдите значение выражения номера 321 если сможете то и 322 можно тоже

a) =4/8 + 5/8 = 9/8 = 1 1/8б) =3/4 - 2/4 = 1/4в) =7/10 - 6/10 = 1/10г) =10/14 - 3/14 = 7/14=1/2д) =20/36 - 15/36 = 5/36е) =35/60 - 21/60 = 14/60=7/30ж) =20/24 + 9/24 = 29/24 = 1 5/24з) =95/105 - 77/105 = 18/105=6/35и) =105/110 - 6/110 = 99/110 =9/10k) =15/126 + 20/126 = 35/126=5/18л) =55/105 - 6/105 = 49/105=7/15м) =25/120 + 14/120=39/120=3/40================================322)a)=1/2 + 1/3 = 3/6 + 2/6 = 5/6б)=5/6 + 3/4 = 10/12 + 9/12 = 19/12 = 1 7/12в) =11/15 - 4/10 = 22/30 - 12/30 = 10/30 = 1/3г) =19/20 - 5/12 = 57/60 - 25/60 = 32/60 = 8/15