Add 90/14 and 21/54, Solve 6 6/14 + 21/54 as a fraction

Add 90/14 and 21/54

1^st number: 6 6/14, 2^nd number: 21/54

90/14 + 21/54 is 859/126.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 54 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 14 × 27 = 378,
90/14 = 90 × 27/14 × 27 = 2430/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
21/54 = 21 × 7/54 × 7 = 147/378
Add the two like fractions:
2430/378 + 147/378 = 2430 + 147/378 = 2577/378
2577/378 simplified gives 859/126
So, 90/14 + 21/54 = 859/126
In mixed form: 6103/126

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