Question

4. If A / B = 3/5 and B / C = 7/1 , find: a) A / C b) A / B / C​

Answer 1

Step-by-step explanation:

LCM 5,7--35

a:3*7--21

b:5*7--35

c:1*5--5

a)21/5

b)21/35/5

Answer 2

Step-by-step explanation:

a) To find A/C, we can multiply A/B and B/C, since B appears in both ratios:

A/B * B/C = A/C

Substituting the given values, we get:

(3/5) * (7/1) = A/C

Simplifying, we get:

A/C = 21/5

Therefore, A/C is equal to 21/5.

b) To find A/B/C, we can simply multiply the two ratios together:

A/B * B/C = A/C

Substituting the given values, we get:

(3/5) * (7/1) = A/C

Simplifying, we get:

A/C = 21/5

Now, to find A/B/C, we can substitute this value in the following expression:

A/B/C = A/B * B/C

Substituting the given values and the value we found for A/C, we get:

A/B/C = (3/5) * (7/1) / (21/5)

Simplifying, we get:

A/B/C = 1/1

Therefore, A/B/C is equal to 1.