Add 90/27 and 21/98, Solve 3 9/27 + 21/98 as a fraction

Add 90/27 and 21/98

1^st number: 3 9/27, 2^nd number: 21/98

90/27 + 21/98 is 149/42.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 98 is 2646

Next, find the equivalent fraction of both fractional numbers with denominator 2646
For the 1st fraction, since 27 × 98 = 2646,
90/27 = 90 × 98/27 × 98 = 8820/2646
Likewise, for the 2nd fraction, since 98 × 27 = 2646,
21/98 = 21 × 27/98 × 27 = 567/2646
Add the two like fractions:
8820/2646 + 567/2646 = 8820 + 567/2646 = 9387/2646
9387/2646 simplified gives 149/42
So, 90/27 + 21/98 = 149/42
In mixed form: 323/42

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