* 8x10: This is the largest size, and we'll use it as our reference point.
* 5x7: To compare, think of the 8x10 as a "whole" picture. The 5x7 is smaller, but we need to determine how much smaller.
* Wallet: These are the smallest, and we'll assume they're standard wallet size, which is roughly 2.5 x 3.5 inches.
Calculating Fractions:
1. 5x7 compared to 8x10:
* Area of 8x10: 8 inches * 10 inches = 80 square inches
* Area of 5x7: 5 inches * 7 inches = 35 square inches
* Fraction: 35 square inches / 80 square inches = 7/16 (The 5x7 is 7/16 the size of the 8x10)
2. Wallet compared to 8x10:
* Area of Wallet (approximate): 2.5 inches * 3.5 inches = 8.75 square inches
* Fraction: 8.75 square inches / 80 square inches ≈ 11/100 (The wallet size is roughly 11/100 the size of the 8x10)
So, the fractions of the sizes are:
* 8x10: 1 (the whole)
* 5x7: 7/16
* Wallet: 11/100 (approximately)