Add 8/84 and 21/9
1st number: 8/84, 2nd number: 2 3/9
8/84 + 21/9 is 17/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
8/84 = 8 × 3/84 × 3 = 24/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
21/9 = 21 × 28/9 × 28 = 588/252 - Add the two like fractions:
24/252 + 588/252 = 24 + 588/252 = 612/252 - 612/252 simplified gives 17/7
- So, 8/84 + 21/9 = 17/7
In mixed form: 23/7
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