Add 30/36 and 21/54
30/36 + 21/54 is 11/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 54 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 36 × 3 = 108,
30/36 = 30 × 3/36 × 3 = 90/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
21/54 = 21 × 2/54 × 2 = 42/108 - Add the two like fractions:
90/108 + 42/108 = 90 + 42/108 = 132/108 - 132/108 simplified gives 11/9
- So, 30/36 + 21/54 = 11/9
In mixed form: 12/9
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