Question

find the a:c


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Answer 1

Answer:

1)Given:

a:b=2:5

a:b=2:5b:c=4:7

1)Solution:

a/b=2/5

Multiplying with 4/4 so that we can make the b equal

=>a/b=(2/5)*(4/4)

=>a/b=(8/20)

=>a:b=8:20-----------(1)

=>b/c=4/7

Multiplying with 5/5 so that we can make the b equal

=>b/c=(4/7)*(5/5)

=>b/c=20/35

=>b:c=20:35----------(2)

from (1) and (2)

=>a:c=8:35

2)Given:

a:b=1½:1⅔

b:c=1⅔:5

2)Solution:

=>a/b=>1½:1⅔=>3/2:5/3

(Changing mixed fraction to improper fraction)

=>a:b=3/2:5/3------------(1)

b:c=>1⅔:5=5/3:5--------(2)

from (1) and (2)

a:c=3/2:5

a:c=1½:5

Answer 2

Answer:

answer and steps are given in the above picture s

Step-by-step explanation:

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