Add 21/27 and 56/8
1st number: 21/27, 2nd number: 7 0/8
21/27 + 56/8 is 70/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 8 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 27 × 8 = 216,
21/27 = 21 × 8/27 × 8 = 168/216 - Likewise, for the 2nd fraction, since 8 × 27 = 216,
56/8 = 56 × 27/8 × 27 = 1512/216 - Add the two like fractions:
168/216 + 1512/216 = 168 + 1512/216 = 1680/216 - 1680/216 simplified gives 70/9
- So, 21/27 + 56/8 = 70/9
In mixed form: 77/9
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