Solutions by everydaycalculation.com

2184 + 190 is 47180.

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

LCM of 84 and 90 is**1260**

Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 84 × 15 = 1260,

2184 = 21 × 1584 × 15 = 3151260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,

190 = 1 × 1490 × 14 = 141260 - Add the two like fractions:

3151260 + 141260 = 315 + 141260 = 3291260 - 329/1260 simplified gives 47180
- So, 21/84 + 1/90 = 47/180

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