Fractions in Decimals — conversion method?
Use calculator SD button to simplify fractions from decimals.
Subtracting fractions from whole — process?
Convert to common denominator or decimal, then subtract from 1.
Fraction of a quantity — formula?
(Total ÷ denominator) × numerator.
Percentages calculation — basic step?
(Total ÷ 100) × percentage.
Percentage increase — formula?
(Difference ÷ original) × 100.
Interest and GST — basic calculation?
Apply percentage formulas; multiply or divide as needed.
Ratio simplification — method?
Divide numerator and denominator by their GCD.
Ratio splitting — process?
Divide total by sum of parts, then multiply by each part.
Rate calculation — example?
Rate = Quantity ÷ Time or other units.
Standard form — positive power?
Move decimal right, multiply by 10^n.
Standard form — negative power?
Move decimal left, multiply by 10^(-n).
Converting to standard form — normal to scientific?
Position decimal after first digit, count moves as exponent.
Converting from standard form — normal number?
Move decimal in opposite direction, add zeros if needed.
Simplify ratio 8:12
Divide both by 4, result 2:3.
Split $72 in ratio 2:7 — part 1?
$16.
Find hidden ratio value — method?
Divide known amount by ratio part, multiply for others.
Unit rate — definition?
Cost or quantity per single item.
Using unit rate — to find total?
Multiply unit rate by new quantity.
Standard form — large number example?
$4.8 imes 10^3 = 4800$.
Standard form — small number example?
$1.4 imes 10^{-6} = 0.0000014$.
Teste tes connaissances avec un QCM de 10 questions sur Mastering Fractions, Decimals, and Ratios.
1. What does converting a fraction into a decimal mean?
2. Which calculator function is used to simplify fractions derived from decimal amounts?
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