Add 7/84 and 15/9
1st number: 7/84, 2nd number: 1 6/9
7/84 + 15/9 is 7/4.
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,
7/84 = 7 × 3/84 × 3 = 21/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
15/9 = 15 × 28/9 × 28 = 420/252 - Add the two like fractions:
21/252 + 420/252 = 21 + 420/252 = 441/252 - 441/252 simplified gives 7/4
- So, 7/84 + 15/9 = 7/4
In mixed form: 13/4
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