Add 30/81 and 21/10
1st number: 30/81, 2nd number: 2 1/10
30/81 + 21/10 is 667/270.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 10 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 81 × 10 = 810,
30/81 = 30 × 10/81 × 10 = 300/810 - Likewise, for the 2nd fraction, since 10 × 81 = 810,
21/10 = 21 × 81/10 × 81 = 1701/810 - Add the two like fractions:
300/810 + 1701/810 = 300 + 1701/810 = 2001/810 - 2001/810 simplified gives 667/270
- So, 30/81 + 21/10 = 667/270
In mixed form: 2127/270
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