1) а = 7/8 : 5 1/4
а = 7/8 : 21/4
а = 1/6
2) b = 4 2/9 : 6 1/3
b = 38/9 :19/3
b = 2/3
3) c = 4/9 * 1 11/16
с = 4/9 * 27/16
с = 3/4
4) d = 2/11 * 8 1/4
d = 2/11 * 33/4
d = 3/2 = 1 1/2
5) x = 1 2/3 : 2 7/9
x = 5/3 : 25/9
x = 3/5
6) y = 1 2/3 : 2 1/2
y = 5/3 : 5/2
y = 2/3
7) m = 3 3/7 : 4
m = 24/7 : 4
m = 6/7
8) n = 24 12/19 : 6
n = (24 : 6) + (12/19 : 6)
n = 4 + 2/19
n = 4 2/19