Add 14/5 and 21/90, Solve 2 4/5 + 21/90 as a fraction

Add 14/5 and 21/90

1^st number: 2 4/5, 2^nd number: 21/90

14/5 + 21/90 is 91/30.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 90 is 90

Next, find the equivalent fraction of both fractional numbers with denominator 90
For the 1st fraction, since 5 × 18 = 90,
14/5 = 14 × 18/5 × 18 = 252/90
Likewise, for the 2nd fraction, since 90 × 1 = 90,
21/90 = 21 × 1/90 × 1 = 21/90
Add the two like fractions:
252/90 + 21/90 = 252 + 21/90 = 273/90
273/90 simplified gives 91/30
So, 14/5 + 21/90 = 91/30
In mixed form: 31/30

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