Answer:
a:b=3:4 or a/b= 3/4…………..(1)
b:c=6:7 or b/c=6/7……………..(2)
Multiply eq.(1) and eq.(2)
(a/b) ×( b / c) =( 3 /4) × (6 / 7)
a/c= 9 / 14
a : c = 9 :14 answer.
Explanation:
3:7
b is the same in both so it would just be 3:6:7 without b which is 3:7
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