Add 36/21 and 18/25, Solve 1 15/21 + 18/25 as a fraction

Add 36/21 and 18/25

1^st number: 1 15/21, 2^nd number: 18/25

36/21 + 18/25 is 426/175.

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

Next, find the equivalent fraction of both fractional numbers with denominator 525
For the 1st fraction, since 21 × 25 = 525,
36/21 = 36 × 25/21 × 25 = 900/525
Likewise, for the 2nd fraction, since 25 × 21 = 525,
18/25 = 18 × 21/25 × 21 = 378/525
Add the two like fractions:
900/525 + 378/525 = 900 + 378/525 = 1278/525
1278/525 simplified gives 426/175
So, 36/21 + 18/25 = 426/175
In mixed form: 276/175

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