Solutions by everydaycalculation.com

23 + 45 is 2215.

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

LCM of 3 and 5 is**15**

Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 3 × 5 = 15,

23 = 2 × 53 × 5 = 1015 - Likewise, for the 2nd fraction, since 5 × 3 = 15,

45 = 4 × 35 × 3 = 1215 - Add the two like fractions:

1015 + 1215 = 10 + 1215 = 2215 - So, 2/3 + 4/5 = 22/15

In mixed form: 1715

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