Add 98/21 and 21/54, Solve 4 14/21 + 21/54 as a fraction

Add 98/21 and 21/54

1^st number: 4 14/21, 2^nd number: 21/54

98/21 + 21/54 is 91/18.

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,
98/21 = 98 × 18/21 × 18 = 1764/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
21/54 = 21 × 7/54 × 7 = 147/378
Add the two like fractions:
1764/378 + 147/378 = 1764 + 147/378 = 1911/378
1911/378 simplified gives 91/18
So, 98/21 + 21/54 = 91/18
In mixed form: 51/18

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