Add 21/54 and 25/30
21/54 + 25/30 is 11/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 30 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
21/54 = 21 × 5/54 × 5 = 105/270 - Likewise, for the 2nd fraction, since 30 × 9 = 270,
25/30 = 25 × 9/30 × 9 = 225/270 - Add the two like fractions:
105/270 + 225/270 = 105 + 225/270 = 330/270 - 330/270 simplified gives 11/9
- So, 21/54 + 25/30 = 11/9
In mixed form: 12/9
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