Solutions by everydaycalculation.com

The simplest form of 21840 is 140.

- Find the GCD (or HCF) of numerator and denominator

GCD of 21 and 840 is**21** - Divide both the numerator and denominator by the GCD

21 ÷ 21840 ÷ 21 - Reduced fraction: 140

Therefore, 21/840 simplified to lowest terms is 1/40.

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Equivalent fractions: ^{42}/_{1680} ^{63}/_{2520} ^{7}/_{280} ^{105}/_{4200} ^{147}/_{5880} ^{3}/_{120}

More fractions: ^{42}/_{840} ^{21}/_{1680} ^{63}/_{840} ^{21}/_{2520} ^{22}/_{840} ^{21}/_{841}^{20}/_{840} ^{21}/_{839}

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