Solutions by everydaycalculation.com

13 + 49 is 79.

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

LCM of 3 and 9 is**9** - For the 1st fraction, since 3 × 3 = 9,

13 = 1 × 33 × 3 = 39 - Likewise, for the 2nd fraction, since 9 × 1 = 9,

49 = 4 × 19 × 1 = 49 - Add the two fractions:

39 + 49 = 3 + 49 = 79

Related: ^{2}/_{3}+^{4}/_{9} ^{1}/_{3}+^{8}/_{9} ^{1}/_{6}+^{4}/_{9} ^{1}/_{3}+^{4}/_{18} ^{1}/_{3}+^{12}/_{9} ^{1}/_{9}+^{4}/_{9} ^{1}/_{3}+^{4}/_{27} ^{5}/_{3}+^{4}/_{9} ^{1}/_{3}+^{20}/_{9} ^{1}/_{15}+^{4}/_{9} ^{1}/_{3}+^{4}/_{45} ^{7}/_{3}+^{4}/_{9} ^{1}/_{3}+^{28}/_{9} ^{1}/_{21}+^{4}/_{9} ^{1}/_{3}+^{4}/_{63}

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