How to write 4b^-2/4b^-3 without a denominator?
(4b^-2) ÷ (4b^-3) Write with positive exponents:
= (4/b²) ÷ (4/b³) Replace division with multiplying by the reciprocal:
= (4/b²) x (b³/4) Multiply numerator times numerator and denominator times denominator:
= (4b³) / (4b²) Cancel like factors:
= b