Add 80/25 and 5/21, Solve 3 5/25 + 5/21 as a fraction

Add 80/25 and 5/21

1^st number: 3 5/25, 2^nd number: 5/21

80/25 + 5/21 is 361/105.

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,
80/25 = 80 × 21/25 × 21 = 1680/525
Likewise, for the 2nd fraction, since 21 × 25 = 525,
5/21 = 5 × 25/21 × 25 = 125/525
Add the two like fractions:
1680/525 + 125/525 = 1680 + 125/525 = 1805/525
1805/525 simplified gives 361/105
So, 80/25 + 5/21 = 361/105
In mixed form: 346/105

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