Add 81/24 and 90/63, Solve 3 9/24 + 1 27/63 as a fraction

Add 81/24 and 90/63

1^st number: 3 9/24, 2^nd number: 1 27/63

81/24 + 90/63 is 269/56.

Find the least common denominator or LCM of the two denominators:
LCM of 24 and 63 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 24 × 21 = 504,
81/24 = 81 × 21/24 × 21 = 1701/504
Likewise, for the 2nd fraction, since 63 × 8 = 504,
90/63 = 90 × 8/63 × 8 = 720/504
Add the two like fractions:
1701/504 + 720/504 = 1701 + 720/504 = 2421/504
2421/504 simplified gives 269/56
So, 81/24 + 90/63 = 269/56
In mixed form: 445/56

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