Add 12/21 and 9/25
12/21 + 9/25 is 163/175.
Steps for adding fractions
- 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,
12/21 = 12 × 25/21 × 25 = 300/525 - Likewise, for the 2nd fraction, since 25 × 21 = 525,
9/25 = 9 × 21/25 × 21 = 189/525 - Add the two like fractions:
300/525 + 189/525 = 300 + 189/525 = 489/525 - 489/525 simplified gives 163/175
- So, 12/21 + 9/25 = 163/175
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