Add 90/14 and 84/9, Solve 6 6/14 + 9 3/9 as a fraction

Add 90/14 and 84/9

1^st number: 6 6/14, 2^nd number: 9 3/9

90/14 + 84/9 is 331/21.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 9 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 14 × 9 = 126,
90/14 = 90 × 9/14 × 9 = 810/126
Likewise, for the 2nd fraction, since 9 × 14 = 126,
84/9 = 84 × 14/9 × 14 = 1176/126
Add the two like fractions:
810/126 + 1176/126 = 810 + 1176/126 = 1986/126
1986/126 simplified gives 331/21
So, 90/14 + 84/9 = 331/21
In mixed form: 1516/21

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