12 of Adam's money is equal to
78 of Bryan's money.
Adam has $210.
- How much does Bryan have?
- How much does Adam have more than Bryan?
- How much do they have altogether?
(a)
Make the numerators the same using the LCM of 1 and 7.
LCM of 1 and 7 = 7
1 x 72 x 7 of Adam's money =
7 x 18 x 1 of Bryan's money
714 of Adam's money =
78 of Bryan's money
Amount that Adam has = 14 u
Amount that Bryan has = 8 u
14 u = 210
1 u = 210 ÷ 14 = 15
Amount that Bryan has
= 8 u
= 8 x 15
= $120
(b)
Amount that Adam has more than Bryan
= 14 u - 8 u
= 6 u
= 6 x 15
= $90
(c)
Amount that they have altogether
= 14 u + 8 u
= 22 u
= 22 x 15
= $330
Answer(s): (a) $120; (b) $90; (c) $330