2/5 - 1/2 Number Pair:
Welcome to 2/5 and 1/2 Analysis
Basic Operations
Addition (9/10), Subtraction (-1/10), Multiplication (1/5), and Division (4/5)
Advanced Analysis
Ratios and proportional relationships
Interval Studies
Midpoint (9/20), quarter values
➕ Addition
2/5 + 1/2 = 9/10
➖ Subtraction
2/5 - 1/2 = -1/10
✖️ Multiplication
2/5 × 1/2 = 1/5
➗ Division
2/5 ÷ 1/2 = 4/5
📍 Midpoint & Intervals
2/5
17/40
9/20
19/40
1/2
Midpoint
9/20
The average of both numbers
Distance from Midpoint
±1/20
Distance from center to either number
Quarter Values
25%: 17/40
75%: 19/40
Interval Size
1/100
Size of each 10% interval
💡 Fun Facts
2/5 multiplied by itself 756471/1000000 times approximately equals 1/2
The difference between these numbers (0.1) divided by their sum (0.9) is 111111/1000000