Add 14/18 and 90/21, Solve 14/18 + 4 6/21 as a fraction

Add 14/18 and 90/21

1^st number: 14/18, 2^nd number: 4 6/21

14/18 + 90/21 is 319/63.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 21 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 18 × 7 = 126,
14/18 = 14 × 7/18 × 7 = 98/126
Likewise, for the 2nd fraction, since 21 × 6 = 126,
90/21 = 90 × 6/21 × 6 = 540/126
Add the two like fractions:
98/126 + 540/126 = 98 + 540/126 = 638/126
638/126 simplified gives 319/63
So, 14/18 + 90/21 = 319/63
In mixed form: 54/63

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