Add 28/25 and 25/21, Solve 1 3/25 + 1 4/21 as a fraction

Add 28/25 and 25/21

1^st number: 1 3/25, 2^nd number: 1 4/21

28/25 + 25/21 is 1213/525.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 21 is 525

Next, find the equivalent fraction of both fractional numbers with denominator 525
For the 1st fraction, since 25 × 21 = 525,
28/25 = 28 × 21/25 × 21 = 588/525
Likewise, for the 2nd fraction, since 21 × 25 = 525,
25/21 = 25 × 25/21 × 25 = 625/525
Add the two like fractions:
588/525 + 625/525 = 588 + 625/525 = 1213/525
So, 28/25 + 25/21 = 1213/525
In mixed form: 2163/525

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