Add 16/21 and 75/54, Solve 16/21 + 1 21/54 as a fraction

Add 16/21 and 75/54

1^st number: 16/21, 2^nd number: 1 21/54

16/21 + 75/54 is 271/126.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 54 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 21 × 18 = 378,
16/21 = 16 × 18/21 × 18 = 288/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
75/54 = 75 × 7/54 × 7 = 525/378
Add the two like fractions:
288/378 + 525/378 = 288 + 525/378 = 813/378
813/378 simplified gives 271/126
So, 16/21 + 75/54 = 271/126
In mixed form: 219/126

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