The ratio of Ian's to Liam's money is 8 : 7. The ratio of Liam's to Fabian's money is 4 : 5. If Ian has $352, how much more does Fabian have than Liam?
| Ian |
Liam |
Fabian |
| 8x4 |
7x4 |
|
| |
4x7 |
5x7 |
| 32 u |
28 u |
35 u |
The amount that Liam has is the repeated identity.
Use LCM to make it the same.
LCM of 7 and 4 = 28
Amount that Ian has = 32 u
32 u = 352
1 u = 352 ÷ 32 = 11
Amount that Fabian has more than Liam
= 35 u - 28 u
= 7 u
= 7 x 11
= $77
Answer(s): $77
