Add 81/25 and 21/9
1st number: 3 6/25, 2nd number: 2 3/9
81/25 + 21/9 is 418/75.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 9 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 25 × 9 = 225,
81/25 = 81 × 9/25 × 9 = 729/225 - Likewise, for the 2nd fraction, since 9 × 25 = 225,
21/9 = 21 × 25/9 × 25 = 525/225 - Add the two like fractions:
729/225 + 525/225 = 729 + 525/225 = 1254/225 - 1254/225 simplified gives 418/75
- So, 81/25 + 21/9 = 418/75
In mixed form: 543/75
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