if A:B= 4:15, B:C =3:7 find A:C =?
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Step-by-step explanation:
A:B=4:15 B:C=3:7
=>A/B=4/15 =>B/C=3/7
=>A=4B/15 =>C=7B/3
A:C=A/C=(4B/15)/(7B/3)
=4B/15×3/7B=4/35=4:35
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