Number System
NIOS · Class 10 · Maths
All formulas from Number System in NIOS Class 10 Maths. Key equations, constants, and identities for board exam preparation.
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2. Rational Numbers and Standard Form
p/q
(-p)/q = -(p/q)
(-p)/(-q) = p/q
Equivalent forms: multiply or divide numerator and denominator by the same non-zero number
4. Operations on Rational Numbers
p/q + r/q = (p + r)/q
p/q + r/s = (ps + rq)/(qs)
p/q - r/q = (p - r)/q
p/q - r/s = (ps - qr)/(qs)
p/q × r/s = pr/qs
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