A
ACTIVE
B
TAP
SCALE k
TAP
RESULT
AUTO
WORKING
—
—
—
—
—
—
—
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SIMPLIFY
Enter A and B
Press ENTER → divide by gcd
Example: 12:18 → 2:3
SCALE
Choose SCALE by k
Enter A, B, and k
Example: 2:3, k=5 → 10:15
KEYS
NEXT/TAB next field
± toggles sign
CLR clears active • C all
SWAP swaps A and B
NOTES
Ratios usually use positive integers
If A=B=0 → not a valid ratio
Result box is automatic
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A
ACTIVE
B
TAP
SCALE k
TAP
RESULT
AUTO
WORKING
—
—
—
—
—
—
—
PAGE 1/2
SIMPLIFY
Enter A and B • press ENTER
Divide both by gcd
12:18 → 2:3
SCALE
Choose SCALE • enter k
2:3, k=5 → 10:15
KEYS
NEXT/TAB next field
CLR active • C all
SWAP swaps A and B
NOTES
Result updates on ENTER
Ratios usually positive
PAGE 2/2