Add 15/54 and 90/14, Solve 15/54 + 6 6/14 as a fraction

Add 15/54 and 90/14

1^st number: 15/54, 2^nd number: 6 6/14

15/54 + 90/14 is 845/126.

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

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 54 × 7 = 378,
15/54 = 15 × 7/54 × 7 = 105/378
Likewise, for the 2nd fraction, since 14 × 27 = 378,
90/14 = 90 × 27/14 × 27 = 2430/378
Add the two like fractions:
105/378 + 2430/378 = 105 + 2430/378 = 2535/378
2535/378 simplified gives 845/126
So, 15/54 + 90/14 = 845/126
In mixed form: 689/126

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