Add 7/3 and 8/21
1st number: 2 1/3, 2nd number: 8/21
7/3 + 8/21 is 19/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 21 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 3 × 7 = 21,
7/3 = 7 × 7/3 × 7 = 49/21 - Likewise, for the 2nd fraction, since 21 × 1 = 21,
8/21 = 8 × 1/21 × 1 = 8/21 - Add the two like fractions:
49/21 + 8/21 = 49 + 8/21 = 57/21 - 57/21 simplified gives 19/7
- So, 7/3 + 8/21 = 19/7
In mixed form: 25/7
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