Add 21/27 and 4/28
21/27 + 4/28 is 58/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 28 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 27 × 28 = 756,
21/27 = 21 × 28/27 × 28 = 588/756 - Likewise, for the 2nd fraction, since 28 × 27 = 756,
4/28 = 4 × 27/28 × 27 = 108/756 - Add the two like fractions:
588/756 + 108/756 = 588 + 108/756 = 696/756 - 696/756 simplified gives 58/63
- So, 21/27 + 4/28 = 58/63
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