Adam spends ¹₂₀ of his money on some stickers.
He spends ³₁₀ of his money on some beads and
³₄ of the remaining money on some marbles.
In the end, he has $39 left.

1. How much does he spend on the stickers?
2. How much does he spend on the beads?
3. How much does he spend on the marbles?
4. How much does he spend altogether?

(a)
Amount left after Adam spends on stickers and beads
= 1 - ¹₂₀ - ³₁₀
= 1 - ¹₂₀ - ⁶₂₀
= ¹³₂₀

Make the numerators the same.
¹³₂₀ of the amount = ⁴₄ of the remaining amount
⁵²₈₀ of the amount = ⁵²₅₂ of the remaining amount

Amount that Adam spends on stickers = ¹₂₀ = ⁴₈₀ 
Amount that Adam spends on beads = ³₁₀ = ²⁴₈₀

Amount that Adam spends on marbles
= ³₄ x 52 u
= 39 u 

Amount that he has left
= 52 u - 39 u
= 13 u

13 u = 39

1 u = 39 ÷ 13 = 3

Amount that he spends on the stickers
= 4 u
= 4 x 3
= $12

(b)
Amount that he spends on the beads
= 24 u
= 24 x 3
= $72

(c)
Amount that he spends on the marbles
= 39 u
= 39 x 3
= $117

(d)
Amount that he spends altogether
= 12 + 72 + 117
= $201

Answer(s): (a) $12; (b) $72; (c) $117; (d) $201