Add 15/25 and 27/21, Solve 15/25 + 1 6/21 as a fraction

Add 15/25 and 27/21

1^st number: 15/25, 2^nd number: 1 6/21

15/25 + 27/21 is 66/35.

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,
15/25 = 15 × 21/25 × 21 = 315/525
Likewise, for the 2nd fraction, since 21 × 25 = 525,
27/21 = 27 × 25/21 × 25 = 675/525
Add the two like fractions:
315/525 + 675/525 = 315 + 675/525 = 990/525
990/525 simplified gives 66/35
So, 15/25 + 27/21 = 66/35
In mixed form: 131/35

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