The ratio of Perry's to Harry's money is 7 : 6. The ratio of Harry's to Fabian's money is 3 : 5. If Perry has $119, how much less does Harry have than Fabian?
Perry |
Harry |
Fabian |
7x1 |
6x1 |
|
|
3x2 |
5x2 |
7 u |
6 u |
10 u |
The amount that Harry has is the repeated identity.
Use LCM to make it the same.
LCM of 6 and 3 = 6
Amount that Perry has = 7 u
7 u = 119
1 u = 119 ÷ 7 = 17
Amount that Harry has less than Fabian
= 10 u - 6 u
= 4 u
= 4 x 17
= $68
Answer(s): $68