lf a:b=3:5 and b:c = 6:7 find a:b:c
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Answer:
a : b : c = 18 : 30 : 35
Step-by-step explanation:
a : b = 3 : 5
b : c = 6 : 7
Here, b is compared with two different values a and c, to compare a and c, we will take a common multiple of the values of b ( 5 and 6 ).
LCM of 5 and 6 = 30
a : b = 3 : 5
a : b = 3 × 6 : 5 × 6
a : b = 18 : 30
b : c = 6 : 7
b : c = 6 × 5 : 7 × 5
b : c = 30 : 35
( a : b :: b : c = a : b : c )
18 : 30 :: 30: 35
18 : 30 : 35
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