Pamela made some biscuits. She sold ²₃ of them in the afternoon and ⁴₇ of the remainder in the evening. If she sold 70 more biscuits in the afternoon than in the evening, how many biscuits did she make altogether?

Afternoon	Remainder		Total
2x7	1x7		3x7
	Evening	Left
	4	3
14 u	4 u	3 u	21 u

Fraction of biscuits left after selling some in the afternoon
= 1 - ²₃ 
= ¹₃

Fraction of biscuits sold in the evening
= ⁴₇ x ¹₃
= ⁴₂₁

Make the denominators the same.
 ²₃ = ¹⁴₂₁ 

Number of biscuits that Pamela sold in the afternoon = 14 u
Number of biscuits that Pamela sold in the evening = 4 u

Number of more biscuits that Pamela sold in the afternoon than in the evening
= 14 u - 4 u
= 10 u

10 u = 70

1 u = 70 ÷ 10 = 7

Total number of biscuits that Pamela made
= 21 u
= 21 x 7
= 147

Answer(s): 147