Solutions by everydaycalculation.com

1^{st} number: 1 2/3, 2^{nd} number: 3/9

53 + 39 is 21.

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

LCM of 3 and 9 is**9**

Next, find the equivalent fraction of both fractional numbers with denominator 9 - For the 1st fraction, since 3 × 3 = 9,

53 = 5 × 33 × 3 = 159 - Likewise, for the 2nd fraction, since 9 × 1 = 9,

39 = 3 × 19 × 1 = 39 - Add the two like fractions:

159 + 39 = 15 + 39 = 189 - 18/9 simplified gives 21
- So, 5/3 + 3/9 = 2/1

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