Add 63/18 and 84/7
1st number: 3 9/18, 2nd number: 12 0/7
63/18 + 84/7 is 31/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 7 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
63/18 = 63 × 7/18 × 7 = 441/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
84/7 = 84 × 18/7 × 18 = 1512/126 - Add the two like fractions:
441/126 + 1512/126 = 441 + 1512/126 = 1953/126 - 1953/126 simplified gives 31/2
- So, 63/18 + 84/7 = 31/2
In mixed form: 151/2
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