Add 21/28 and 5/6
21/28 + 5/6 is 19/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 6 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
21/28 = 21 × 3/28 × 3 = 63/84 - Likewise, for the 2nd fraction, since 6 × 14 = 84,
5/6 = 5 × 14/6 × 14 = 70/84 - Add the two like fractions:
63/84 + 70/84 = 63 + 70/84 = 133/84 - 133/84 simplified gives 19/12
- So, 21/28 + 5/6 = 19/12
In mixed form: 17/12
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