25 of Adam's money is equal to
13 of Bryan's money.
Adam has $90.
- How much does Bryan have?
- How much does Adam have less than Bryan?
- How much do they have altogether?
(a)
Make the numerators the same.
25 of Adam's money =
13 of Bryan's money
2 x 15 x 1 of Adam's money =
1 x 23 x 2 of Bryan's money
25 of Adam's money =
26 of Bryan's money
5 u = 90
1 u = 90 ÷ 5 = 18
Amount that Bryan has
= 6 u
= 6 x 18
= $108
(b)
Amount that Adam has less than Bryan
= 6 u - 5 u
= 1 u
= 1 x 18
= $18
(c)
Amount that they have altogether
= 5 u + 6 u
= 11 u
= 11 x 18
= $198
Answer(s): (a) $108; (b) $18; (c) $198