Add 9/21 and 72/75
9/21 + 72/75 is 243/175.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 75 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 21 × 25 = 525,
9/21 = 9 × 25/21 × 25 = 225/525 - Likewise, for the 2nd fraction, since 75 × 7 = 525,
72/75 = 72 × 7/75 × 7 = 504/525 - Add the two like fractions:
225/525 + 504/525 = 225 + 504/525 = 729/525 - 729/525 simplified gives 243/175
- So, 9/21 + 72/75 = 243/175
In mixed form: 168/175
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