Add 54/12 and 20/63, Solve 4 6/12 + 20/63 as a fraction

Add 54/12 and 20/63

1^st number: 4 6/12, 2^nd number: 20/63

54/12 + 20/63 is 607/126.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 63 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 12 × 21 = 252,
54/12 = 54 × 21/12 × 21 = 1134/252
Likewise, for the 2nd fraction, since 63 × 4 = 252,
20/63 = 20 × 4/63 × 4 = 80/252
Add the two like fractions:
1134/252 + 80/252 = 1134 + 80/252 = 1214/252
1214/252 simplified gives 607/126
So, 54/12 + 20/63 = 607/126
In mixed form: 4103/126

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