6. Give the lowest common multiple and the highest common factor for each pair of numbers:
a)
100 and 132
625 and 195
b)
378 and 252
c)
d)
175 and 63
e)
266 and 142
f)
156 and 378
7.
Give the simplest ratio for each of these
a)
68 : 34
b)
42:63
c)
64 : 16
d)
44 : 11
e)
56 : 7
f)
54: 18
g)
60 : 90
h)
2 : 12
i)
15: 45​