Add 84/25 and 12/21
1st number: 3 9/25, 2nd number: 12/21
84/25 + 12/21 is 688/175.
Steps for adding fractions
- 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,
84/25 = 84 × 21/25 × 21 = 1764/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
12/21 = 12 × 25/21 × 25 = 300/525 - Add the two like fractions:
1764/525 + 300/525 = 1764 + 300/525 = 2064/525 - 2064/525 simplified gives 688/175
- So, 84/25 + 12/21 = 688/175
In mixed form: 3163/175
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