Add 15/21 and 4/25, Solve 15/21 + 4/25 as a fraction

Add 15/21 and 4/25

15/21 + 4/25 is 153/175.

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,
15/21 = 15 × 25/21 × 25 = 375/525
Likewise, for the 2nd fraction, since 25 × 21 = 525,
4/25 = 4 × 21/25 × 21 = 84/525
Add the two like fractions:
375/525 + 84/525 = 375 + 84/525 = 459/525
459/525 simplified gives 153/175
So, 15/21 + 4/25 = 153/175

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