Add 21/27 and 28/4
1st number: 21/27, 2nd number: 7 0/4
21/27 + 28/4 is 70/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 4 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 27 × 4 = 108,
21/27 = 21 × 4/27 × 4 = 84/108 - Likewise, for the 2nd fraction, since 4 × 27 = 108,
28/4 = 28 × 27/4 × 27 = 756/108 - Add the two like fractions:
84/108 + 756/108 = 84 + 756/108 = 840/108 - 840/108 simplified gives 70/9
- So, 21/27 + 28/4 = 70/9
In mixed form: 77/9
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