Add 18/28 and 21/56
18/28 + 21/56 is 57/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 28 × 2 = 56,
18/28 = 18 × 2/28 × 2 = 36/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
21/56 = 21 × 1/56 × 1 = 21/56 - Add the two like fractions:
36/56 + 21/56 = 36 + 21/56 = 57/56 - So, 18/28 + 21/56 = 57/56
In mixed form: 11/56
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