P614 TELETEXT-TOOLS 614 Wed 01 Jan
00:00/00 PAGE ___
TELETEXT-TOOLS
FRACTIONS
a (NUM)
ACTIVE
b (DEN)
TAP
RESULT
AUTO
DECIMAL
AUTO
WORKING
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ENTRY (a÷b)
Enter numerator a and denominator b
This represents the fraction a/b
Denominator must not be 0
SIMPLIFY EXAMPLE
12/18 → gcd=6 → 2/3
Press ENTER to show steps
CALC EXAMPLE
2/3 + 3/4
= (2×4 + 3×3) / (3×4)
= 17/12 = 1 5/12
CALCULATE
Choose CALCULATE
Pick + − × ÷ then enter c and d
Result is simplified automatically
KEYS
NEXT/TAB next field
± toggles sign (active box)
CLR clears active • C all
SWAP swaps a↔b (or c↔d)
NOTES
We keep the denominator positive
If denominator is 0 → ERROR
Decimal is a rounded hint
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a (NUM)
ACTIVE
b (DEN)
TAP
RESULT
AUTO
DECIMAL
AUTO
WORKING
PAGE 1/2
SIMPLIFY
Enter a and b • press ENTER
12/18 → gcd=6 → 2/3
CALCULATE
Choose + − × ÷ then enter c and d
2/3 + 3/4 = 17/12
KEYS
NEXT/TAB next field
± toggles sign
CLR active • C all
SWAP a↔b (or c↔d)
NOTES
Denominator must not be 0
We keep denominator positive
PAGE 2/2