Add 21/28 and 12/54
21/28 + 12/54 is 35/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 28 × 27 = 756,
21/28 = 21 × 27/28 × 27 = 567/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
12/54 = 12 × 14/54 × 14 = 168/756 - Add the two like fractions:
567/756 + 168/756 = 567 + 168/756 = 735/756 - 735/756 simplified gives 35/36
- So, 21/28 + 12/54 = 35/36
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