John gave ¹₈ of his erasers to Julian, ¹₇ of his remaining erasers to Cole and ¹₄ of the rest of his erasers to Owen. He then had 54 erasers left. How many erasers had he at first?
Fraction of the rest of the erasers that John had left after giving to Julian, Cole and Owen
= 1 - ¹₄
= ³₄

³₄ of the rest of the erasers that John had left = 54
¹₄ of the rest of the erasers that John had left = 54 ÷ 3 = 18
⁴₄ of the rest of the erasers that John had left = 4 x 18 = 72

Fraction of his remaining erasers that John had left after giving to Julian and Cole
= 1 - ¹₇
= ⁶₇

⁶₇ of his remaining erasers that John had left = 72
¹₇ of his remaining erasers that John had left = 72 ÷ 6 = 12
⁷₇ of his remaining erasers that John had left = 7 x 12 = 84

Fraction of his remaining erasers that John had left after giving to Julian
= 1 - ¹₈
= ⁷₈

⁷₈ of the erasers that John had left = 84
¹₈ of the erasers that John had left = 84 ÷ 7 = 12
⁸₈ of the erasers that John had left = 8 x 12 = 96

Number of erasers that John had at first = 96

Answer(s): 96