Add 21/36 and 3/9
21/36 + 3/9 is 11/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 36 × 1 = 36,
21/36 = 21 × 1/36 × 1 = 21/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
3/9 = 3 × 4/9 × 4 = 12/36 - Add the two like fractions:
21/36 + 12/36 = 21 + 12/36 = 33/36 - 33/36 simplified gives 11/12
- So, 21/36 + 3/9 = 11/12
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