Add 84/20 and 48/63, Solve 4 4/20 + 48/63 as a fraction

Add 84/20 and 48/63

1^st number: 4 4/20, 2^nd number: 48/63

84/20 + 48/63 is 521/105.

Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260

Next, find the equivalent fraction of both fractional numbers with denominator 1260
For the 1st fraction, since 20 × 63 = 1260,
84/20 = 84 × 63/20 × 63 = 5292/1260
Likewise, for the 2nd fraction, since 63 × 20 = 1260,
48/63 = 48 × 20/63 × 20 = 960/1260
Add the two like fractions:
5292/1260 + 960/1260 = 5292 + 960/1260 = 6252/1260
6252/1260 simplified gives 521/105
So, 84/20 + 48/63 = 521/105
In mixed form: 4101/105

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