Add 30/84 and 7/9
30/84 + 7/9 is 143/126.
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,
30/84 = 30 × 3/84 × 3 = 90/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
7/9 = 7 × 28/9 × 28 = 196/252 - Add the two like fractions:
90/252 + 196/252 = 90 + 196/252 = 286/252 - 286/252 simplified gives 143/126
- So, 30/84 + 7/9 = 143/126
In mixed form: 117/126
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