Add 25/21 and 28/36, Solve 1 4/21 + 28/36 as a fraction

Add 25/21 and 28/36

1^st number: 1 4/21, 2^nd number: 28/36

25/21 + 28/36 is 124/63.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 36 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 21 × 12 = 252,
25/21 = 25 × 12/21 × 12 = 300/252
Likewise, for the 2nd fraction, since 36 × 7 = 252,
28/36 = 28 × 7/36 × 7 = 196/252
Add the two like fractions:
300/252 + 196/252 = 300 + 196/252 = 496/252
496/252 simplified gives 124/63
So, 25/21 + 28/36 = 124/63
In mixed form: 161/63

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