Add 27/21 and 8/7
1st number: 1 6/21, 2nd number: 1 1/7
27/21 + 8/7 is 17/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 7 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 21 × 1 = 21,
27/21 = 27 × 1/21 × 1 = 27/21 - Likewise, for the 2nd fraction, since 7 × 3 = 21,
8/7 = 8 × 3/7 × 3 = 24/21 - Add the two like fractions:
27/21 + 24/21 = 27 + 24/21 = 51/21 - 51/21 simplified gives 17/7
- So, 27/21 + 8/7 = 17/7
In mixed form: 23/7
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