Add 28/56 and 90/63, Solve 28/56 + 1 27/63 as a fraction

Add 28/56 and 90/63

1^st number: 28/56, 2^nd number: 1 27/63

28/56 + 90/63 is 27/14.

Find the least common denominator or LCM of the two denominators:
LCM of 56 and 63 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 56 × 9 = 504,
28/56 = 28 × 9/56 × 9 = 252/504
Likewise, for the 2nd fraction, since 63 × 8 = 504,
90/63 = 90 × 8/63 × 8 = 720/504
Add the two like fractions:
252/504 + 720/504 = 252 + 720/504 = 972/504
972/504 simplified gives 27/14
So, 28/56 + 90/63 = 27/14
In mixed form: 113/14

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