GB-10-06-001 · Reverse fractions
A charity spends of its fund on equipment and of the remainder on transport. It has £555.00 left. Work out the original fund.
Reverse Fractions of Remainders
Application of related method — Booklet p. 19 & p. 53
Method
1) Multiply remaining fractions at each stage: (1 − 1/b) × (1 − 1/d)
2) Divide the final amount left by the combined remaining fraction
Worked Example (GB-10-06-001)
1)
Fraction remaining =
2)
Divide £555.00 by this remaining fraction.
3)
£888.00
Ans =
£888.00