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Arithmetic
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\frac { 4 } { 7 } \times \frac { 5 } { 12 } = \frac { 4 } { 7 } =
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\frac{4\times 5}{7\times 12}=\frac{4}{7}
Multiply \frac{4}{7} times \frac{5}{12} by multiplying numerator times numerator and denominator times denominator.
\frac{20}{84}=\frac{4}{7}
Do the multiplications in the fraction \frac{4\times 5}{7\times 12}.
\frac{5}{21}=\frac{4}{7}
Reduce the fraction \frac{20}{84} to lowest terms by extracting and canceling out 4.
\frac{5}{21}=\frac{12}{21}
Least common multiple of 21 and 7 is 21. Convert \frac{5}{21} and \frac{4}{7} to fractions with denominator 21.
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Compare \frac{5}{21} and \frac{12}{21}.
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