Add 18/25 and 84/21
1st number: 18/25, 2nd number: 4 0/21
18/25 + 84/21 is 118/25.
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,
18/25 = 18 × 21/25 × 21 = 378/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
84/21 = 84 × 25/21 × 25 = 2100/525 - Add the two like fractions:
378/525 + 2100/525 = 378 + 2100/525 = 2478/525 - 2478/525 simplified gives 118/25
- So, 18/25 + 84/21 = 118/25
In mixed form: 418/25
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