Add 21/5 and 27/54, Solve 4 1/5 + 27/54 as a fraction

Add 21/5 and 27/54

1^st number: 4 1/5, 2^nd number: 27/54

21/5 + 27/54 is 47/10.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 54 is 270

Next, find the equivalent fraction of both fractional numbers with denominator 270
For the 1st fraction, since 5 × 54 = 270,
21/5 = 21 × 54/5 × 54 = 1134/270
Likewise, for the 2nd fraction, since 54 × 5 = 270,
27/54 = 27 × 5/54 × 5 = 135/270
Add the two like fractions:
1134/270 + 135/270 = 1134 + 135/270 = 1269/270
1269/270 simplified gives 47/10
So, 21/5 + 27/54 = 47/10
In mixed form: 47/10

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