Solutions by everydaycalculation.com

118 - 39 is -518.

- Find the least common denominator or LCM of the two denominators:

LCM of 18 and 9 is**18** - For the 1st fraction, since 18 × 1 = 18,

118 = 1 × 118 × 1 = 118 - Likewise, for the 2nd fraction, since 9 × 2 = 18,

39 = 3 × 29 × 2 = 618 - Subtract the two fractions:

118 - 618 = 1 - 618 = -518

Related: ^{2}/_{18}-^{3}/_{9} ^{1}/_{18}-^{6}/_{9} ^{1}/_{36}-^{3}/_{9} ^{1}/_{18}-^{3}/_{18} ^{3}/_{18}-^{3}/_{9} ^{1}/_{54}-^{3}/_{9} ^{1}/_{18}-^{3}/_{27} ^{5}/_{18}-^{3}/_{9} ^{1}/_{18}-^{15}/_{9} ^{1}/_{90}-^{3}/_{9} ^{1}/_{18}-^{3}/_{45} ^{7}/_{18}-^{3}/_{9} ^{1}/_{18}-^{21}/_{9} ^{1}/_{18}-^{3}/_{63}

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