Add 28/27 and 21/84
1st number: 1 1/27, 2nd number: 21/84
28/27 + 21/84 is 139/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 84 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 27 × 28 = 756,
28/27 = 28 × 28/27 × 28 = 784/756 - Likewise, for the 2nd fraction, since 84 × 9 = 756,
21/84 = 21 × 9/84 × 9 = 189/756 - Add the two like fractions:
784/756 + 189/756 = 784 + 189/756 = 973/756 - 973/756 simplified gives 139/108
- So, 28/27 + 21/84 = 139/108
In mixed form: 131/108
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