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Calculators for percentages, fractions, algebra, statistics, and scientific math.
Solve any percentage problem: X% of Y, percentage difference, discount & tax.
Add, subtract, multiply, and divide fractions with step-by-step simplification.
Solve ratios (A:B = C:D) and scale aspect ratios.
Find Greatest Common Divisor and Least Common Multiple.
Calculate the Least Common Multiple (LCM) of integers.