Solutions by everydaycalculation.com

310 + 39 is 1930.

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

LCM of 10 and 9 is**90** - For the 1st fraction, since 10 × 9 = 90,

310 = 3 × 910 × 9 = 2790 - Likewise, for the 2nd fraction, since 9 × 10 = 90,

39 = 3 × 109 × 10 = 3090 - Add the two fractions:

2790 + 3090 = 27 + 3090 = 5790 - After reducing the fraction, the answer is 1930

Related: ^{6}/_{10}+^{3}/_{9} ^{3}/_{10}+^{6}/_{9} ^{3}/_{20}+^{3}/_{9} ^{3}/_{10}+^{3}/_{18} ^{9}/_{10}+^{3}/_{9} ^{3}/_{30}+^{3}/_{9} ^{3}/_{10}+^{3}/_{27} ^{15}/_{10}+^{3}/_{9} ^{3}/_{10}+^{15}/_{9} ^{3}/_{50}+^{3}/_{9} ^{3}/_{10}+^{3}/_{45} ^{21}/_{10}+^{3}/_{9} ^{3}/_{10}+^{21}/_{9} ^{3}/_{70}+^{3}/_{9} ^{3}/_{10}+^{3}/_{63}

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